Development: Class 10 Economics · Chapter 1
Understanding Economic Development · Companion notes, simulations and practice · Official NCERT chapter PDF ↗
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What you will learn in Development
- Explain why people in different life situations hold different, and sometimes conflicting, ideas of development
- Recognise that developmental goals include income as well as equality, freedom, security and respect
- Calculate average (per capita) income and explain why averages can hide an unequal distribution
- Describe how the World Bank groups countries by income per person and where India stands
- Compare states and countries using infant mortality, literacy, school enrolment and life expectancy, and explain why income alone is not enough
- Explain how public facilities improve well-being and how the UNDP's Human Development Index combines health, education and income
- Explain the sustainability of development using groundwater and crude oil as examples of renewable and non-renewable resources
Original companion text aligned to NCERT Social Science Class 10, Chapter 1, pp. 2–17. Not affiliated with or endorsed by NCERT.
What would make life better for you? A Class 10 student in Patna might name a good college seat. Her grandmother might name a hospital close to home, and a farmer outside the city might name water for his fields in every season. Each answer is a small picture of development (विकास): the belief that life can improve, together with some idea of how to get there.
Behind these answers sit harder questions. Which needs should come first? Who should gain, and how fairly should the gains be shared? In this chapter we look at how people's ideas of progress differ, how we can measure development, and how states and countries can be compared. We also ask whether today's progress can last for people not yet born. History and political science will help you here too: the present grows out of the past, and in a democracy citizens settle these choices together.
1.1 What development promises — different people, different goals
Think of people you know: a neighbour who drives an auto-rickshaw, a cousin preparing for an engineering entrance test, a farmer whose fields wait for the monsoon. Ask each of them what progress would look like and the answers will differ. Each person asks first for whatever would change their situation the most.
| Person | What development could mean |
|---|---|
| A cotton farmer in Vidarbha who depends on rain | Water for a second crop, a fair price for cotton, loans without crushing interest |
| A delivery rider in Bengaluru | Steady earnings, accident insurance, a safe place to rest between orders |
| A girl in Class 10 in a small town | A college nearby, safe transport, the same freedom as her brother |
| A family that owns a textile mill | |
| A fishing family on the Odisha coast | |
| A brick-kiln worker who migrates each season | |
| A retired teacher who lives alone |
Your entries are saved automatically.
Read down the right-hand column. The farmer thinks first of water and prices, the rider of security at work, the student of education and freedom. None of them is wrong. Their goals differ because their lives differ: where they live, what they own, what work they do and what holds them back. This gives us the first lesson of the chapter: people in different situations want different things from development.
3/3The company's goal and the village's goal cannot both be met on the same hill: the goals conflict.
A list of five people, each drawn as a simple figure: a rain-fed farmer, a delivery rider, a girl in Class 10, a cement company and a hill village. In the first step only the people are shown. In the second step an arrow from each points to what they want most: water all year; fixed pay and insurance; college and equal freedom; to quarry the hill; and to keep the forest and grazing land. In the third step the first three rows fade, the last two goals are boxed in red dashes with a zigzag between them, and a note reads one hill, opposite hopes.
Goals can also pull against each other. A shopkeeper may want the street widened so that more customers can drive up, while the vendors who sell vegetables along that street would lose their spots. A cement company may want to quarry a hill for limestone. The village below depends on that same hill for firewood, grazing and the springs that feed its wells. So a second lesson follows: one group's progress can be another group's loss, and it can even wreck someone's livelihood.
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Answer (C) Their life situations and needs are different
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Answer False
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Answer (D) A company wants to quarry a hill; the village below wants to keep the hill's forest
1.2 Income and other goals
Look again at Table 1.1. Almost every row asks, in some form, for more money: steadier work, better pay, a fair price for crops. More income lets a family eat better, keep its children in school and cope with illness. So more income is a goal that nearly everyone shares.
Now picture a worker who earns well but is spoken to rudely every day because of where he comes from. Or picture a young woman who earns a salary but needs permission to step out of the house. Neither would call that a good life, whatever the pay. People want to be treated as equals, to make their own choices, to feel safe and to be respected. A festival evening with your family costs little, yet you would not trade it for money: a good life is not made of goods alone.
No survey can easily score dignity or a sense of safety, so such goals tend to drop out of official reports. That is a weakness of the reports, not a sign that these goals matter less.
Improvement in people's lives over time: more income, and also better health, education, freedom, security and dignity, reached in ways that are fair to others.
ExampleA village gets a road, a secondary school and safe drinking water, and its families earn more without anyone being pushed out.
Here is how a mix of goals shows up in one real decision. Meera has just finished a nursing diploma. A private hospital in Mumbai offers her ₹45,000 a month on a one-year contract with frequent night shifts. The district hospital in her home town offers ₹32,000 a month in a permanent post with fixed hours. On pay alone, Mumbai wins. But Meera also weighs job security, time with her ageing parents and the chance to learn. Fig. 1.2 shows how the balance can shift.
3/3Add time with family and Offer B wins for Meera. Someone else, weighing the goals differently, could choose A.
A balance scale with Offer A (city, contract) on the left pan and Offer B (home, permanent) on the right. In the first step the left pan holds a large block labelled higher pay and the right pan a small block labelled lower pay, so the beam tips down on the left. In the second step a block labelled security is added to the right pan and the beam becomes level. In the third step a block labelled family time is added to the right pan and the beam tips down on the right, towards Offer B.
Meera's two offers
Mumbai hospital (Offer A)
- ₹45,000 a month
- one-year contract
- night shifts, far from family
- busy wards: fast learning
Home-town hospital (Offer B)
- ₹32,000 a month
- permanent post
- fixed hours, close to family
- fewer specialist cases
Women's work shows how tangled these goals are. A woman with her own earnings often gains a stronger voice at home. Yet she may not be able to take a job at all. The streets may be unsafe after dark, or her family may still expect her to do all the housework. Income, safety and respect therefore depend on each other: progress in one makes progress in the others easier.
Developmental goals, then, come as a bundle: more income, together with equality, freedom, security, respect and a say in the decisions that shape one's life.
Let's work these out (NCERT p. 6): questions with answers
Two classmates disagree. Raghav says people want different kinds of development simply because every person is unique. Fatima says it is mainly because people live in different circumstances. Whose explanation helps more in understanding development, and why?
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AnswerFatima's explanation is more useful.
People do differ, but that alone does not tell us what they will ask for. Their circumstances do: a farmer who depends on rain wants irrigation, a worker without a contract wants job security, a girl kept at home wants freedom to study.
Because goals grow out of life situations, we can predict them, group people with similar situations, and see where goals may clash. So Fatima's explanation is the more useful one, although personal preferences also play a part.
Is there a difference between goals that are different and goals that conflict? Explain with one example of each.
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AnswerDifferent goals can all be met together; conflicting goals cannot, because meeting one blocks the other.
Different goals: a student wants a library and a farmer wants a cold-storage unit. Both can be built; one does not stop the other.
Conflicting goals: a company wants to quarry a hill while the village below wants to keep its forest and springs. Meeting one goal destroys the other.
So the two words do not mean the same thing: all conflicting goals are different, but not all different goals conflict.
From your own life or neighbourhood, describe three choices that people made for reasons other than money.
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AnswerFor example: safety on the way to school, being treated with respect at a government office, time to spend with family.
Possible examples: (1) parents choosing a nearby school with safe transport over a slightly better one far away; (2) a family preferring a job with fixed hours so that someone is home for an ill grandparent; (3) people wanting to be treated with respect, whatever their caste or religion, when they use a public well or a temple; (4) a clean, quiet neighbourhood.
In each case the choice is not decided by money alone.
Write an 80-word summary of Section 1.1 and Section 1.2 that a Class 8 student could follow.
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A model answer: People's ideas of development depend on their life situations, so different people have different goals. Some goals conflict, so what is development for one group can harm another. Almost everyone wants more income, but people also want equality, freedom, security and respect. These are harder to measure, but they are not less important. Real choices, like choosing between two jobs, weigh a mix of goals, so development is about income and the quality of life.
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- (A) respect from others
- (C) freedom to choose one's work
- (E) safety from violence
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Answer (A) People weigh a mix of goals, not just income
1.3 National development
Now scale the question up from one family to a country of more than 140 crore people. Ask your class what India should do to develop. You may hear: more factories, better government schools, cleaner rivers, more jobs in villages, faster trains, stronger action against corruption. Each idea has supporters, and some of them pull against others.
How, then, does a country choose? A few questions help. Does the plan help many people, or only a few? Is it fair to the people who will bear its costs? Is there a way to get most of the benefit with less harm? Thinking about national development means asking these questions openly, and settling them through public debate, courts, elections and the work of elected governments.
4/4Fair compensation, homes rebuilt nearby and an underpass reduce the harm while keeping most of the benefit.
A schematic view of land between a city on the left and a port on the right, with fields and a village in between. In the first step a dashed outline shows the planned expressway running through the fields and three houses of the village. In the second step the road is built, traffic arrows run both ways, the three houses fade, and two plus signs read shorter commute and faster freight. In the third step dashed red rings mark the strip of fields and the houses lost under the road, with minus signs reading farmland lost and homes moved. In the fourth step an underpass crosses the road, three new houses stand nearby, and ticks read homes rebuilt, fair compensation and underpass.
Fig. 1.3 follows one such plan. Whether the expressway counts as development depends on whose gains and losses we count, and on what is done for those who lose. Different people can hold different, and even conflicting, ideas of what is good for the country, and a fair process has to hear all of them.
Let's work these out (NCERT p. 7): questions with answers
Picture a city block where a forty-storey glass office tower stands next to a settlement of tin-roofed homes with open drains and a single shared water tap. Suggest three developmental goals for this area and say who would benefit from each.
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AnswerFor example: piped water and toilets for every home; covered drains and waste collection; secure housing or upgrading of the settlement.
Possible goals: (1) piped water and toilets for every household, which helps the settlement's families most and cuts disease for the whole block; (2) covered drains and regular garbage collection, which benefit everyone, including office workers; (3) secure, upgraded housing or a fair resettlement nearby, so that families are not simply evicted; (4) a school, a clinic or skill training, possibly with the office companies' support.
Notice that the tower's owners might prefer to clear the settlement, while residents want to stay and improve it: the goals can conflict.
Read this imaginary news brief: "For years a tannery upstream of the town of Riverpur saved money by releasing untreated waste into the river. Its leather goods sold cheaply in big cities. Downstream, the fish catch fell and many villagers who used the river water fell ill."
Who gained and who lost?
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AnswerThe tannery's owners and the buyers of cheap leather gained; fishing families and villagers downstream lost.
The owners saved the cost of treating waste, and city buyers paid lower prices. The fishing families lost income, villagers lost their health and spent money on treatment, and the river itself was damaged for everyone downstream.
Suggest a fair development goal for the region.
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AnswerGrowth of jobs and industry without poisoning the river: treated waste, enforced rules and compensation for those harmed.
The goal should not be to shut all industry, since the tannery gives jobs. It should be to make the tannery treat its waste, enforce pollution laws, clean the river, and compensate people who fell ill or lost their catch, so that the benefits of the industry are not paid for by the poorest people downstream.
If you sat on your village panchayat or ward committee, which three improvements would you push for? Rank them and give reasons.
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Answers will vary. A good answer names three concrete goals (for example a secondary school for girls within walking distance, regular garbage collection, a functioning health centre) and gives a reason for the first choice, such as how many people it would help or how urgent the need is.
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Answer (C) Who gains, who bears the costs, and are the losers fairly compensated?
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Answer False
1.4 How to compare different countries or states?
People often call some countries developed and others developing. If development means different things to different people, how can anyone sort countries like this? Start with a simpler puzzle.
Suppose your school must send one team to an inter-school quiz and another to a kabaddi tournament. You would not pick both teams by the same test: general knowledge matters for one, strength and speed for the other. Comparing countries works the same way. We first decide what we want to compare, then choose a few features that capture it, and finally measure everyone on those features.
For countries, the feature used most often is income. The reasoning is that with more income, people can buy more of what they need and want. So a country with a higher income is usually treated as more developed than one with less.
But which income? Adding up the incomes of everyone living in a country gives its total income. Total income is a poor yardstick for comparing countries, because their populations differ hugely. India's total income is several times Switzerland's, yet a typical Swiss resident is far richer than a typical Indian. India's income is shared among about 160 times as many people. What we really want to know is what an average person has. So we divide a country's total income by its population to get its average income, also called its per capita income (प्रति व्यक्ति आय).
- per capita (average) income
- total income of the country or state in a year
- its population
The total income of a country or state divided by its population: the income of an average person in a year.
Example₹16 lakh crore shared among 8 crore people gives ₹2 lakh per person.
Bigger total, smaller average
Two imaginary states have these figures for one year. State P: total income ₹16 lakh crore, population 8 crore. State Q: total income ₹10.5 lakh crore, population 3.5 crore. Which state has the larger total income, and which has the higher per capita income?
Try it yourself first. Then reveal the solution one step at a time.
How the World Bank groups countries
The World Bank uses income per person to sort the world's economies into four groups. Its yardstick is gross national income (GNI) per capita, converted into US dollars by a method (the Atlas method) that smooths out sudden swings in exchange rates. The groups are revised every year on 1 July.
| Group | GNI per person in 2025 (US dollars) | Examples (US dollars, 2025) |
|---|---|---|
| Low income | 1,175 or less | Mozambique 570, Ethiopia 1,110 |
| Lower-middle income | 1,176 to 4,635 | Nepal 1,570, India 2,760, Bangladesh 2,840 |
| Upper-middle income | 4,636 to 14,375 | Sri Lanka 4,670, Indonesia 5,120, China 14,230 |
| High income | more than 14,375 | Germany 60,200, United States 88,810 |
India's GNI per capita was about 2,760 US dollars in 2025, which places it among the lower-middle-income countries. Countries in the high-income group are often called developed countries. The label is not usually given, though, to some oil-rich countries of West Asia or to a few very small countries.
Averages hide disparities
Averages are handy, but they can mislead. Take two imaginary villages with six households each. In Amli the monthly household incomes are ₹14,000, ₹16,000, ₹15,000, ₹17,000, ₹16,000 and ₹18,000. In Bakul they are ₹5,000, ₹6,000, ₹4,000, ₹7,000, ₹6,000 and ₹68,000.
4/4In Bakul one household has about 71 per cent of all the income. The average hides this.
Two bar charts drawn to the same scale, in thousands of rupees a month. In the first step only Village Amli appears: six bars of similar height, labelled 14, 16, 15, 17, 16 and 18. In the second step Village Bakul appears beside it: five short bars labelled 5, 6, 4, 7 and 6, and one very tall bar labelled 68. In the third step one dashed line at 16 runs across both charts, labelled both average 16. In the fourth step the tall bar in Bakul is outlined heavily and a note says one household has 71 per cent of the income.
Same average, different lives
Find the average monthly household income in Amli and in Bakul. Then say which village you would rather live in if you could not choose which household you were born into.
Try it yourself first. Then reveal the solution one step at a time.
Most people choose Amli: nobody there is very rich and nobody is very poor. An average gives one handy number for comparing places. But it is silent about who actually holds the income: whether it is distributed evenly or held by a few. Two places with the same average can be very different places to live.
Let's work these out (NCERT p. 9): questions with answers
Name three situations in school, sport or daily life in which people compare things by working out an average.
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AnswerFor example: a class's average marks, a batter's batting average, a city's average rainfall.
Examples: (1) comparing two sections by their average marks in a test; (2) comparing cricketers by batting average (runs per dismissal); (3) comparing cities by average annual rainfall or average temperature; (4) comparing bikes by average mileage in km per litre.
A friend says that comparing total incomes is enough. Explain why economists prefer average income when comparing states or countries.
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AnswerBecause it allows for differences in population and tells us roughly what a typical person can afford.
Total incomes cannot be compared fairly, because a big country can have a large total income while its people are poor. Dividing by population gives the income of an average person, so places of very different sizes can be compared.
Income is also linked to many needs: with more income people can usually buy more food, housing, education and health care. So per capita income is a reasonable first indicator, though not a complete one.
Amli and Bakul have exactly the same average income. What else about income must we know before saying they are equally well off?
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AnswerHow the income is shared out: evenly among households, or held mostly by a few.
Amli and Bakul both have an average of ₹16,000 a month, but Amli's income is shared fairly evenly while one household in Bakul has about 71 per cent of it. So we must also look at the distribution of income: how equally it is shared.
A district collector announces that average income in the district rose by 10 per cent in five years. A farm worker says her family now earns less than before. Can both be true? Show how with numbers.
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AnswerNo: the average can rise even if many families earn the same or less.
No. Suppose a district has four families earning ₹10,000, ₹10,000, ₹10,000 and ₹30,000 a month. The average is ₹60,000 ÷ 4 = ₹15,000.
Five years later they earn ₹9,000, ₹9,000, ₹10,000 and ₹38,000. The total is now ₹66,000, so the average is ₹16,500, a rise of 10 per cent. Yet two families earn less than before and one earns the same. All the gain went to the richest family.
Use Table 1.3 to place each country, with its GNI per capita in 2025 (US dollars), in its World Bank group.
Tap an item on the left, then its match on the right.
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Answer- Uganda, 1,120 : low income
- Pakistan, 1,500 : lower-middle income
- Brazil, 10,550 : upper-middle income
- Japan, 38,340 : high income
Uganda's 1,120 is below 1,175 (low). Pakistan's 1,500 lies between 1,176 and 4,635 (lower-middle). Brazil's 10,550 lies between 4,636 and 14,375 (upper-middle). Japan's 38,340 is above 14,375 (high). Figures: World Bank, World Development Indicators.Write a paragraph on the changes India needs in order to count as a developed country. Use at least three different kinds of goals from this chapter.
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A model answer: To become developed, India must raise incomes, but that is only part of the task. Good jobs need to reach villages and small towns, so that the gains are not concentrated among a few. Every child should complete school, and every family should have clean water, sanitation and a working health centre nearby, so that fewer babies die and people live longer, healthier lives. Women must be able to study, work and move about safely. Finally, growth must not exhaust groundwater or poison rivers and air, so that the next generation inherits a country that can keep developing.
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Answer 30000 ₹
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Answer 3
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Answer (B) Countries have very different populations
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Answer (B) Lower-middle income
1.5 Income and other criteria
Individuals, we saw, weigh far more than pay. Should we not judge a whole state the same way? Let us put income to the test with four states.
| State | Per capita income, 2024–25 (₹) | Infant mortality rate, 2023 (per 1,000 live births) | Life expectancy at birth, 2019–23 (years) | Gross enrolment ratio, Classes 9–12, 2024–25 (%) |
|---|---|---|---|---|
| Telangana | 3,87,623 | 18 | 70.8 | 83.6 |
| Kerala | 3,08,338 | 5 | 75.1 | 94.1 |
| Madhya Pradesh | 1,52,615 | 37 | 67.6 | 56.7 |
| Bihar | 69,321 | 23 | 69.3 | 44.7 |
Judged by income alone, Telangana tops this group and Bihar comes last. Now read across the other columns. Kerala's income per person is about a fifth lower than Telangana's, yet its infant mortality rate (शिशु मृत्यु दर) is 5 against Telangana's 18. In other words, for every 1,000 babies born alive, 13 more die before their first birthday in Telangana. People in Kerala also live about four years longer on average, and more of its teenagers are enrolled in Classes 9 to 12.
The second pair tells a similar story. Madhya Pradesh has more than twice Bihar's income per person, but its infant mortality rate is 37 against Bihar's 23, and its people live shorter lives on average. On schooling, though, Madhya Pradesh is ahead. No single number captures everything: each indicator lights up a different part of people's lives.
The number of babies who die before their first birthday for every 1,000 live births in a year.
ExampleAn IMR of 18 means that, out of 1,000 babies born alive, 18 die before they turn one.
The percentage of people aged 7 years and above who can read and write with understanding.
ExampleA literacy rate of 80 per cent means 80 of every 100 people aged 7 or more can read and write.
The share of children in an age group who actually attend school, given as a percentage.
ExampleIf 69 of every 100 young people aged 15 to 17 are in school, the net attendance ratio for that age group is 69.
Our table uses a close cousin of the attendance ratio, the gross enrolment ratio (GER). For Classes 9 to 12 it is the number enrolled in those classes, of any age, as a percentage of all young people aged 14 to 17. Because over-age students are counted too, a GER can even pass 100. Your textbook uses the net attendance ratio instead, while the literacy rate looks at reading and writing across all ages. All of them ask how many people are getting the education they need.
3/3Crossing lines show where income and health disagree: richer is not always healthier.
Two ranked lists face each other. On the left, states ranked by income per person in 2024–25: 1 Telangana (3.88 lakh rupees), 2 Kerala (3.08 lakh), 3 Madhya Pradesh (1.53 lakh), 4 Bihar (0.69 lakh). In the second step a right-hand list appears, ranked by fewest infant deaths in 2023: 1 Kerala (IMR 5), 2 Telangana (18), 3 Bihar (23), 4 Madhya Pradesh (37). In the third step lines join each state's two positions; Telangana's and Kerala's lines cross, and so do Madhya Pradesh's and Bihar's, each line drawn in a different dash pattern.
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Answer (D) Kerala
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Answer False
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Answer (D) Some enrolled students are older or younger than the official age
1.6 Public facilities
Why can a state with less income per person do better on health and schooling? Part of the answer is that a family's own earnings, however large, cannot purchase certain things at all. Several of the things that matter most reach a whole community together, or nobody at all.
Think of dengue. One family can empty its water cooler every week and sleep under mosquito nets. But if the drains on the street are blocked and a neighbour's old tyres collect rainwater, mosquitoes will still breed. Only a joint effort, with the municipality clearing drains and spraying and every household removing standing water, protects everyone. Clean air is similar: no family can filter a whole city's air for itself.
Shared provision is often the cheapest way too. One pipe network from a treatment plant to five hundred homes usually costs far less per home than five hundred private borewells and filters. It also avoids draining the groundwater house by house. Streetlights, a bus service, a library and a health centre each serve many people at a low cost per person. Fig. 1.6 shows how taxes paid by many become facilities used by all.
4/4Shared provision is often far cheaper per family, as with one pipe network instead of hundreds of borewells.
A flow diagram in four steps. First, a house and a shop labelled families, shops send an arrow labelled taxes to a pillared building labelled government. Second, an arrow labelled spends runs down from the government to four tiles under the heading public services: school, health centre, ration shop and piped water. Third, an arrow runs from the tiles to three people labelled everyone uses them. Fourth, a highlighted note in the middle says one shared pipe network costs less than 500 borewells.
Your own education is a shared achievement as well. A school opens, and stays open, only because many families want their children taught and because public money pays for teachers, buildings and midday meals. Where a secondary school is missing, far away or unsafe to reach, many teenagers stop studying after Class 8 or 10. Worries about distance and safety keep girls at home especially often.
Kerala's lead in Table 1.4 owes much to public provision of this kind. For decades the state has invested in schools, literacy, health centres and nurses, so basic services reach most villages. Food works the same way. Under the Public Distribution System (PDS, सार्वजनिक वितरण प्रणाली), ration shops supply grain cheaply. Since January 2024, under a five-year central scheme (the PM Garib Kalyan Anna Yojana), about 81 crore people have received their monthly ration of grain free of cost. Families who can count on a working ration shop spend less on grain and have more left for milk, pulses and vegetables.
Let's work these out (NCERT p. 12): questions with answers
Use Table 1.4: is Telangana ahead of Kerala on infant mortality, life expectancy and enrolment, as it is on per capita income? What does this suggest?
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AnswerNo. Kerala does better on all three, although Telangana's income per person is higher.
Telangana's per capita income (₹3,87,623) is higher than Kerala's (₹3,08,338). But Kerala's IMR is 5 against 18, its life expectancy 75.1 against 70.8 years, and its GER for Classes 9 to 12 is 94.1 against 83.6 per cent.
So a higher income does not automatically mean better health and education. Public provision of health care and schooling matters a great deal.
Apart from water pipes and mosquito control, name two services that cost each family less when a whole town shares them. Explain one.
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AnswerFor example: a public bus service, a vaccination drive, a fire station, a public park.
Examples: (1) a town bus service instead of every family buying a vehicle; (2) a vaccination campaign that protects everyone against measles; (3) a fire station serving a whole town; (4) a public park or playground; (5) flood embankments along a river. In each case one shared facility serves many people at a lower cost per person.
Two districts receive the same money for their health centres, but one serves patients far better. Suggest three reasons, other than money, that could explain the difference.
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AnswerNo. Honest management, trained and present staff, and people's awareness and participation also matter.
No. Other factors include: (1) whether staff such as teachers, doctors and nurses are trained and actually present; (2) honest, efficient management so that funds and medicines reach the users; (3) people's awareness and demand, for example parents insisting on regular classes; (4) access, meaning roads, transport and safety to reach the facility; (5) social attitudes, such as willingness to send girls to school.
In State X, most poor rural families buy grain from ration shops; in State Y, few do. In which state are poor families likely to be better fed? What could explain the difference?
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AnswerIn State X, where the PDS reaches most poor families.
Poor families in State X are likely to be better fed, because cheap or free grain from ration shops frees money for other food and protects them when prices rise.
The difference could come from how well the PDS works: shops that open regularly, honest dealers, correct ration cards, enough grain supplied and people aware of what they are entitled to.
Measuring nutrition: body mass index
Good health starts with good nutrition. A quick way to check whether someone is underweight or overweight is the body mass index (BMI): weight in kilograms divided by the square of height in metres.
Working out a BMI
Ananya weighs 52 kg and is 162 cm tall. Find her BMI to one decimal place.
Try it yourself first. Then reveal the solution one step at a time.
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Answer (1) 21, (2) 12
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Answer (A) Protection from a dengue outbreak
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Answer 20 kg/m²
1.7 Human Development Report
If income is not enough, what else should we count? The United Nations Development Programme (UNDP) has given its answer since its first Human Development Report in 1990. It adds two things to income: how long and healthy people's lives are, and how much education they receive.
4/4Combined, they give an HDI of 0.685: India ranks 130th of 193 countries.
A building with three pillars standing on a base. In the first step only the left pillar stands: Health, life expectancy at birth, 72.0 years. In the second step the middle pillar is added: Education, years of school, 13.0 expected and 6.9 for adults. In the third step the right pillar is added: Income, GNI per person in PPP dollars, 9,047. In the fourth step a roof is placed on the pillars reading Human Development Index, 0.685, rank 130 of 193. A note under the base says India, data for 2023, Human Development Report 2025.
The three dimensions are combined into one number, the Human Development Index (HDI, मानव विकास सूचकांक), which runs from 0 to 1. Health is measured by life expectancy at birth. Education is measured by the years of schooling children can expect and the mean years of schooling of adults aged 25 and above. The standard of living is measured by GNI per person, converted into PPP dollars. The 2025 report, which uses data for 2023, ranks 193 countries; India is 130th, with an HDI of 0.685.
| Country | HDI rank | HDI value | Life expectancy (years) | Expected years of schooling | Mean years of schooling (age 25+) | GNI per person (2021 PPP dollars) |
|---|---|---|---|---|---|---|
| China | 78 | 0.797 | 78.0 | 15.5 | 8.0 | 22,029 |
| Sri Lanka | 89 | 0.776 | 77.5 | 13.1 | 10.8 | 12,616 |
| Maldives | 93 | 0.766 | 81.0 | 12.8 | 7.4 | 19,317 |
| Bhutan | 125 | 0.698 | 73.0 | 13.2 | 5.8 | 13,843 |
| India | 130 | 0.685 | 72.0 | 13.0 | 6.9 | 9,047 |
| Bangladesh | 130 | 0.685 | 74.7 | 12.3 | 6.8 | 8,498 |
| Nepal | 145 | 0.622 | 70.4 | 13.8 | 4.5 | 4,726 |
| Pakistan | 168 | 0.544 | 67.6 | 7.9 | 4.3 | 5,501 |
Read the table row by row and some surprises appear. Sri Lanka, with a far smaller population, beats India on all five measures. Bangladesh has a lower income per person than India, but its people live almost three years longer, and the two countries share rank 130. Bhutan has a higher income per person than Sri Lanka, yet ranks 36 places lower. The main reasons are that its adults have had far fewer years of schooling and its people live shorter lives. Nepal's children can now expect more years of school than India's, even though Nepal's income per person is about half of India's.
Compare any two countries, or any two Indian states, in the explorer below. Look for pairs where the richer place is not the healthier or better-educated one.
The report's title carries its message: it is about human development. Whatever an economy produces matters for what it does for people: whether they live long, learn, and live with dignity. Over the years UNDP has added companion measures. One of them adjusts the HDI for inequality within each country. In the 2025 report, inequality lowers India's HDI by about 31 per cent, one of the larger losses in the region. As the two villages showed, a national average can hide wide gaps.
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- (A) a long and healthy life
- (B) knowledge (education)
- (D) a decent standard of living
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Answer (D) Life expectancy
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Answer True
1.8 Sustainability of development
Development that eats away its own base cannot last. A farmer who sells next season's seed to buy a new phone today will have no crop tomorrow. Countries face the same risk on a much larger scale. Since the 1960s, scientists have warned that the way the world grows cannot go on for ever. We dig out minerals, burn fuels, pump water and dump waste faster than nature can cope. That path may leave the next generations poorer.
In 1987 a United Nations commission chaired by Gro Harlem Brundtland of Norway gave the idea a name in its report Our Common Future.
Development that meets the needs of people today without reducing the ability of future generations to meet their own needs.
ExamplePumping only as much groundwater each year as the rains put back, so that wells still work for our grandchildren.
Earth provides enough to satisfy every man's needs, but not every man's greed.
Groundwater: a renewable resource under strain
Groundwater is a renewable resource (नवीकरणीय संसाधन). Every monsoon, rain soaks into the soil and refills the layers of sand and rock that hold water underground. Renewable does not mean endless, though. If more water is pumped out each year than the rain puts back, the water table falls, wells must be dug deeper, and some eventually run dry.
2/3More pumps take out more than the rain puts back, so the water table falls below its earlier level.
A cross-section with a cloud, rain and crops above the ground line, brown soil below it, a blue water-bearing layer whose top is labelled water table, and rock at the bottom. Dashed arrows labelled recharge carry water down from the surface, and one pump house with a pipe draws water up, labelled pumping. In the second step two more pumps appear, the water table drops well below a dashed line marked earlier level, and the blue layer shrinks. In the third step extra recharge arrows appear, labelled more recharge, and the water table rises partway back towards its earlier level.
Why does this happen? Several pressures push extraction up together. Farm pumps run on free or cheap electricity in many states, and water-hungry crops such as paddy and sugarcane are grown in dry regions. Cities are growing fast, and the ponds and wetlands that once soaked up rain are being built over. The remedies are well known: check dams and recharge pits, drip and sprinkler irrigation, crops suited to local rainfall, and rules that reward saving water.
Crude oil: a resource that runs out
Crude oil, coal and natural gas took millions of years to form, so for all practical purposes the Earth holds a limited amount of each. They are non-renewable resources (अनवीकरणीय संसाधन): every barrel burned is gone for good. Exploration does turn up new deposits. But a discovery only reveals oil that was already there; it does not make more, so the total can only shrink.
Renewable and non-renewable resources
Renewable
- refilled by nature: groundwater, forests, fish, soil
- can still be overused if taken faster than it is renewed
- example: pumping groundwater faster than the rain refills it
Non-renewable
- fixed stock: crude oil, coal, natural gas, metal ores
- new finds add to the known stock, but use only shrinks it
- example: oil burned in an engine is gone for good
How long will a stock last? A simple estimate divides the known reserves by the amount used each year.
3/4A new field adds 150 million barrels: at the same rate, the oil now lasts 20 years.
A tall tank on the left is filled with 15 equal orange slices, with a small outlet pipe labelled use at its foot. On the right is the rule years left equals reserves divided by use per year. In the first step the working reads 450 divided by 30 equals 15 years, and a note says 15 slices, one per year. In the second step the bottom slice is outlined in red and the note says one slice equals one year's use. In the third step five yellow dashed slices are added at the top, the note says new find adds 150, and the working reads 600 divided by 30 equals 20 years. In the fourth step the outlet pipe thickens, the note says use rises to 40 a year, and the working reads 600 divided by 40 equals 15 years. All amounts are in million barrels.
How long will the oil last?
An imaginary country has proved oil reserves of 450 million barrels and produces 30 million barrels a year. (a) How many years will its reserves last at this rate? (b) A new field adds 150 million barrels. How long now? (c) If production then rises to 40 million barrels a year, how long will the reserves last?
Try it yourself first. Then reveal the solution one step at a time.
Questions on the two cases (NCERT pp. 14–15): questions with answers
Give three reasons why groundwater is being pumped out faster than it is recharged in parts of India.
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AnswerWater-hungry crops in dry areas, cheap or free power for pumps, growing cities, and lost ponds and wetlands.
(1) Water-hungry crops such as paddy and sugarcane are grown in dry regions. (2) Free or cheap electricity lets farmers run pumps for long hours. (3) Growing cities and industries draw more water every year. (4) Ponds, tanks and wetlands that once let rain soak in have been filled or built over, so less water is recharged.
Suggest three ways in which farms and cities could keep growing while taking out no more groundwater than the rain puts back.
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AnswerYes, by recharging more and wasting less.
Yes, if extraction is kept within recharge. Ways include: (1) check dams, recharge pits and rooftop rainwater harvesting; (2) drip and sprinkler irrigation, which use far less water than flooding fields; (3) growing crops suited to local rainfall, such as millets and pulses in dry areas; (4) metering and pricing that reward saving water; (5) reviving village ponds and tanks.
Why is crude oil important for a country's development? Give three uses.
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AnswerIt fuels transport and machines and is a raw material for many industries.
Crude oil is refined into petrol and diesel for buses, trucks, tractors and ships; into fuels for some power plants and factories; and into raw materials for plastics, fertilisers, paints and medicines. Shortages or price jumps therefore slow down almost every sector, which is why oil is closely tied to development.
India imports most of its crude oil. What problems could this cause if world oil prices rise sharply? Suggest two ways to reduce the risk.
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AnswerCostlier transport and goods, a larger import bill and dependence on suppliers; reduce the risk with renewables and efficiency.
Problems: transport and goods become costlier for everyone, farmers pay more for diesel, the import bill grows and more foreign exchange is spent, and India stays exposed to wars or decisions in supplier countries.
Ways to reduce the risk: expand solar, wind and other renewable energy; use public transport and electric vehicles; use fuel more efficiently; build up strategic oil reserves; and buy from many suppliers rather than a few.
Pollution ignores borders. Winter smoke from burning crop stubble drifts across several states, and carbon dioxide released anywhere warms every country. Our futures are bound together. Problems like these cannot be solved by one subject alone, so ecologists, engineers, economists and philosophers increasingly work on them together.
Development is a question that every generation answers afresh. As citizens and as individuals, we will keep asking what a good life is and who gets to share in it. We will also ask what we owe to people not yet born.
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- (A) groundwater
- (C) forests
- (E) fish in the sea
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Answer 125 %
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Answer False
Quick revision: indicators
Development: key points and summary
- Different people want different things from development because their life situations differ, and one group's development can harm another (Section 1.1).
- Besides more income, people seek equality, freedom, security and respect; goals that are hard to measure still matter (Section 1.2).
- National development means choosing fairly between conflicting ideas, asking who gains and who bears the costs (Section 1.3).
- To compare countries we use per capita (average) income: total income divided by population ((1.1)).
- The World Bank groups countries by GNI per capita; in 2025 India, at about 2,760 US dollars, was a lower-middle-income country (Table 1.3).
- Averages hide how income is distributed: two places with the same average can be very unequal (Averages hide disparities).
- A richer state is not always healthier or better schooled, so we also compare infant mortality, life expectancy, literacy and enrolment (Table 1.4).
- Public facilities such as schools, health care, clean water and ration shops are often best and most cheaply provided together (Section 1.6).
- BMI, weight in kilograms divided by the square of height in metres, is a quick check on nutrition ((1.2)).
- UNDP's Human Development Index combines life expectancy, schooling and income; India ranked 130th of 193 in the 2025 report (Section 1.7).
- Sustainable development meets today's needs without harming future generations' ability to meet theirs (Section 1.8).
- Renewable resources like groundwater can be overused, and non-renewable ones like crude oil run out (Groundwater, Crude oil).
Practice questions with answers (NCERT “Exercises”)
A newspaper wants to rank states by how developed they are. Which choice would give the fullest picture?
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Answer (D) Income, education and health indicators together
Each single indicator shows only one side of development. Income, education and health together give a much fuller picture, which is the idea behind the HDI.According to the Human Development Report 2025, which of these neighbours of India has a better HDI rank than India?
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Answer (C) Sri Lanka
Sri Lanka ranks 89th, far ahead of India's 130th. Nepal (145), Myanmar (150) and Pakistan (168) rank below India.The average monthly income of five households in a lane is ₹12,000. Four of them earn ₹9,000, ₹15,000, ₹8,000 and ₹14,000. How much does the fifth household earn?
₹Show answer
Answer 14000 ₹
Total = 5 × ₹12,000 = ₹60,000. The four known incomes add up to ₹46,000, so the fifth is ₹60,000 − ₹46,000 = ₹14,000.Name the measure on which the World Bank's income groups are based. Why can it mislead if used by itself? Give two reasons.
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AnswerIncome per person (GNI per capita); it hides how income is shared and ignores health, education, freedom and the environment.
The World Bank groups countries by GNI per capita, their average income per person in US dollars.
Limitations: (1) an average says nothing about how income is distributed, so a country can have a high average while many people are poor; (2) income does not show health, education, safety, freedom or the state of the environment; (3) money cannot buy many public goods, such as clean air or protection from epidemics, so a high income may still go with poor health.
Compare the yardsticks of the World Bank and the UNDP. Which gives the more complete picture, and why?
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AnswerThe World Bank uses income per person alone; the UNDP's HDI combines income with health and education.
The World Bank ranks countries by a single indicator, GNI per capita in Atlas dollars.
The UNDP's Human Development Index combines three dimensions: health (life expectancy at birth), education (expected and mean years of schooling) and standard of living (GNI per capita in PPP dollars). So the UNDP looks at what income does for people's lives, not just at income itself.
What makes averages useful for comparing the development of places, and how can they mislead? Give an example of your own.
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AnswerAverages make places of different sizes comparable, but they hide inequality.
We use averages because they reduce a whole population to one number that can be compared across places of different sizes.
But averages hide how income is shared. For example, two housing societies might both have an average family income of ₹50,000 a month. In one, every family earns between ₹45,000 and ₹55,000; in the other, nine families earn ₹10,000 each and one earns ₹4,10,000. The average is the same, (9 × 10,000 + 4,10,000) ÷ 10 = ₹50,000, but life in the two societies is very different.
Bihar has a lower per capita income than Madhya Pradesh but a lower infant mortality rate. A classmate concludes: "So per capita income tells us nothing and should be dropped." Do you agree? Give reasons.
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AnswerNo. Income is still important, but it should be used together with other indicators.
I do not fully agree. The example shows that income alone is not enough: Madhya Pradesh has over twice Bihar's income per person (₹1,52,615 against ₹69,321 in 2024–25), yet its infant mortality rate is higher (37 against 23 in 2023).
But income still matters. It affects what families can afford, and Madhya Pradesh is ahead of Bihar on secondary school enrolment. Higher incomes also give governments more tax revenue for schools and hospitals.
So per capita income should not be dropped. It should be one indicator among several, alongside health and education measures, which is exactly what the HDI does.
Which energy sources power Indian homes, farms and factories today? Imagine India in 2075: which sources might matter more then, and why?
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Today: coal (most electricity and many industries), crude oil products (petrol, diesel, LPG, kerosene), natural gas, firewood and dung cakes in many villages, hydroelectricity, nuclear power, and a fast-growing share of solar and wind power.
Fifty years from now: solar, wind and other renewables are likely to matter much more, because fossil fuels are non-renewable, India imports most of its oil, and burning coal and oil pollutes the air and warms the climate. Other possibilities include green hydrogen, batteries and electric vehicles, small hydro and biogas, and better energy efficiency.
A country raises its income quickly by pumping out groundwater and burning ever more coal. Why might this growth not count as sustainable development?
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AnswerBecause development that uses up resources or damages the environment cannot be kept up for future generations.
Development is meant to last. If we overuse groundwater, burn up non-renewable fuels or pollute air and rivers, we may raise incomes today but leave future generations with fewer resources and a damaged environment. Sustainable development meets today's needs without taking away the ability of future generations to meet theirs, so that progress can continue.
Mahatma Gandhi is often quoted as saying that the Earth has enough for everyone's needs but not for anyone's greed. How does this idea apply to the debate on development?
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The Earth's resources (water, forests, fuels, minerals) can meet everyone's basic needs if they are used wisely and shared fairly. Trouble starts when a few people, firms or countries use far more than they need: pumping out groundwater for profit, felling forests, or burning fuel wastefully.
This links to sustainability (overuse leaves less for future generations), to distribution (some have far more than they need while others lack basics) and to the meaning of development itself (more consumption is not always better). The idea asks us to measure development by whether everyone's needs are met, now and in the future.
Think back over the past month in your locality. Describe four signs of damage to air, water, soil or green cover that you noticed.
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Examples: smoke and dust making the air hazardous in winter; a river or lake choked with sewage, foam or plastic; falling water levels in wells and handpumps; garbage dumped or burned in open plots; trees cut for roads or buildings; soil turned salty or poisoned by overuse of fertilisers and pesticides; noise from traffic.
Using Table 1.7, list the best-placed and the worst-placed country for every indicator.
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- HDI rank and HDI value: top China (78th, 0.797); bottom Pakistan (168th, 0.544).
- Life expectancy: top Maldives (81.0 years); bottom Pakistan (67.6 years).
- Expected years of schooling: top China (15.5); bottom Pakistan (7.9).
- Mean years of schooling: top Sri Lanka (10.8); bottom Pakistan (4.3).
- GNI per person: top China (22,029 PPP dollars); bottom Nepal (4,726).
Study the table on child stunting and answer the questions.
Table 1.8Children under 5 who are stunted (too short for their age), %. Source: NFHS-5 (2019–21); state figures as compiled in Economic Survey 2025–26, Statistical Appendix, Table 8.15. State Stunted children (%) Kerala 23.4 Punjab 24.5 Gujarat 39.0 Bihar 42.9 All India 35.5 About how many more young children in every hundred are stunted in Bihar than in Kerala? What does this suggest?
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AnswerAbout 20 more (42.9 − 23.4 = 19.5): Bihar's rate is nearly twice Kerala's.
About 23 of every 100 young children in Kerala are stunted, against about 43 in Bihar, nearly twice as many. Children in Kerala are much better nourished, in line with its stronger health services and lower infant mortality.
Gujarat's income per person is among the higher ones in India, yet about two in five of its young children are stunted. What does this tell you about income as a yardstick?
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AnswerA high average income does not guarantee good nutrition; distribution and public services matter.
A high average income can hide poor families who cannot afford enough nutritious food, and nutrition also depends on clean water, sanitation, mothers' health and child-care services. So income alone cannot show how well children are fed.
India grows enough food grain for everyone, yet over a third of its young children are stunted. Suggest reasons.
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AnswerPoverty, uneven access, poor diets beyond grain, illness from unsafe water, and gaps in maternal and child care.
Possible reasons: (1) poor families may not be able to buy enough food, especially pulses, milk, eggs and vegetables, since grain alone is not a balanced diet; (2) frequent illness from unsafe water and poor sanitation stops children absorbing nutrients; (3) many mothers are themselves undernourished, so babies are born small; (4) the PDS and child-care services do not work equally well everywhere; (5) lack of awareness about feeding infants and young children.
Assertion (A): Kerala has a lower infant mortality rate than several states with a higher per capita income. Reason (R): Kerala has long provided basic health and education services to most of its people.
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Answer (A) Both A and R are true, and R is the correct explanation of A
A is true (Kerala's IMR of 5 is below that of richer states such as Telangana and Haryana), and R is true and explains it: widespread public health and education services keep infant deaths low.Read the passage and answer the questions. "In ten years the average household income of Sonapur district rose by a fifth. Most of the rise came from a new mine that employs 2,000 workers, many of them from outside the district. In the same years the wells in villages near the mine dried up, and the district's only higher secondary school for girls is 18 km from most villages." (The district is imaginary.)
Does the rise in average income prove that most families in Sonapur are better off? Explain.
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AnswerNo. The rise may have gone mainly to mine workers and owners while village families lost water.
No. An average can rise because a few people earn much more. Here the gains went mainly to the mine and its workers, many from outside, while village families lost their wells. So many local families may be no better off, or even worse off.
Name two indicators, other than income, that you would check before calling Sonapur developed.
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AnswerFor example: access to safe drinking water and girls' enrolment in Classes 9 to 12.
Useful indicators include access to safe drinking water, the infant mortality rate, the literacy rate, girls' net attendance or enrolment in secondary school, and how income is distributed among households.
Which change in the passage raises a question of sustainability, and why?
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AnswerThe drying wells: the mine is using up or damaging groundwater faster than it is recharged.
The drying wells. Groundwater is renewable only if it is not taken faster than it is recharged; mining may be lowering the water table or damaging the aquifer, which will hurt villages and farming long after the mine closes.
Suggest one public facility that would most help girls in Sonapur, and explain your choice.
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AnswerA higher secondary school for girls closer to the villages, or safe free transport to the existing one.
A nearby higher secondary school, or a free and safe school bus, would help most, because distance and safety are major reasons why girls stop studying after Class 10. Education would also raise their future incomes and health.
Map skill. On an outline map of India, locate and label: (a) the state with the lowest infant mortality rate in 2023; (b) the three states that shared the highest rate, 37; (c) the state with the lowest per capita income in 2024–25. (Use the major states listed in the Economic Survey 2025–26.)
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Answer(a) Kerala (b) Madhya Pradesh, Uttar Pradesh, Chhattisgarh (c) Bihar
(a) Kerala (IMR 5). (b) Madhya Pradesh, Uttar Pradesh and Chhattisgarh (IMR 37 each). (c) Bihar (₹69,321).
Sources: Economic Survey 2025–26, Statistical Appendix, Tables 8.2 and 1.11A. Mark the states on a printed outline map; this chapter does not draw maps.
The number of babies who die before their first birthday for every 1,000 live births is called the .
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Answer infant mortality rate
This is the infant mortality rate (IMR), a key health indicator.Which organisation publishes the Human Development Report?
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Answer (B) United Nations Development Programme
The UNDP has published the Human Development Report since 1990. The World Bank publishes the income groupings, not the HDI.A country's total income is ₹24 lakh crore and its population is 12 crore. What is its per capita income, in lakh rupees?
lakh ₹Show answer
Answer 2 lakh ₹
24 lakh crore ÷ 12 crore = 2 lakh rupees per person.
Find your NCERT exercise question
Our practice questions are written for ncert.ai and follow the NCERT exercises. Find the one that matches the question in your textbook; its answer is with it.
Quick check: MCQs on Development
- 1.1 What development promises — different people, different goals3 questions
- 1.2 Income and other goals2 questions
- 1.3 National development2 questions
- Averages hide disparities4 questions
- 1.5 Income and other criteria3 questions
- Measuring nutrition: body mass index3 questions
- 1.7 Human Development Report3 questions
- Crude oil: a resource that runs out3 questions
Key terms (English–Hindi)
- body mass indexशरीर द्रव्यमान सूचकांकsharir dravyaman suchakank
- Weight in kilograms divided by the square of height in metres; a rough check on nutrition.First seen in the chapter →
- developmentविकासvikas
- Improvement in people's lives over time: more income, and also better health, education, freedom, security and dignity.First seen in the chapter →
- gross enrolment ratioसकल नामांकन अनुपातsakal namankan anupat
- Enrolment in a stage of schooling, at any age, as a percentage of children of the official age for that stage; it can exceed 100.First seen in the chapter →
- Human Development Indexमानव विकास सूचकांकmanav vikas suchakank
- A UNDP index from 0 to 1 combining life expectancy, years of schooling and income per person.First seen in the chapter →
- infant mortality rateशिशु मृत्यु दरshishu mrityu dar
- Number of babies who die before their first birthday for every 1,000 live births in a year.First seen in the chapter →
- life expectancyजीवन प्रत्याशाjeevan pratyasha
- Average number of years a newborn baby is expected to live if present death rates continue.First seen in the chapter →
- literacy rateसाक्षरता दरsaksharta dar
- Percentage of people aged 7 and above who can read and write with understanding.First seen in the chapter →
- mean years of schoolingस्कूली शिक्षा के औसत वर्षskooli shiksha ke ausat varsh
- Average number of years of education completed by people aged 25 and above.First seen in the chapter →
- net attendance ratioनिवल उपस्थिति अनुपातnival upasthiti anupat
- The share of children in an age group who actually attend school, as a percentage.First seen in the chapter →
- non-renewable resourceअनवीकरणीय संसाधनanavikaraniya sansadhan
- A resource that exists in a limited amount, such as crude oil or coal, and runs out with use.First seen in the chapter →
- per capita incomeप्रति व्यक्ति आयprati vyakti aay
- Total income of a country or state divided by its population; the income of an average person.First seen in the chapter →
- Public Distribution Systemसार्वजनिक वितरण प्रणालीsarvajanik vitaran pranali
- Government network of ration shops that supplies grain and other essentials at low or no cost.First seen in the chapter →
- purchasing power parityक्रय शक्ति समताkray shakti samata
- A way of converting incomes so that one unit buys the same basket of goods and services in every country.First seen in the chapter →
- renewable resourceनवीकरणीय संसाधनnavikaraniya sansadhan
- A resource that nature replenishes, such as groundwater or forests; it can still be overused.First seen in the chapter →
- sustainable developmentसतत विकासsatat vikas
- Development that meets today's needs without reducing the ability of future generations to meet theirs.