This MCQ module is based on: Demographic Transition Theory, Population Control & Exercises
TOPIC 5 OF 18
Demographic Transition Theory, Population Control & Exercises
🎓 Class 12
Social Science
CBSE
Theory
Chapter 2 — The World Population: Distribution, Density and Growth
⏱ ~28 min
🌐 Language: [gtranslate]
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Demographic Transition, Population Control and NCERT Exercises
Two hundred years ago every country in the world had high birth rates and high death rates. Today, some countries are still in that first stage; some have completed all four classical stages and are entering a fifth in which population is shrinking. The Demographic Transition Theory turns this whole story into a single graph — and in doing so, gives geographers, planners and policymakers a powerful tool for predicting tomorrow's population. This closing part of Chapter 2 explains the four (and now five) stages, the policy debate over population control, and then walks through every NCERT exercise with full model answers.
2.12 Demographic Transition — The Theory
The Demographic Transition Theory? can be used to describe and predict the future population of any area. It tells us that the population of any region passes through clearly identifiable stages, moving from high births and high deaths to low births and low deaths as a society progresses from rural-agrarian-illiterate to urban-industrial-literate. These changes occur in stages that are collectively known as the demographic cycle.
📖 Definition — Demographic Transition
The orderly journey of a population from a regime of high birth rates and high death rates (slow growth) through one of falling death rates with still-high birth rates (rapid growth — the population explosion) to a regime of low birth rates and low death rates (slow growth again, but at a much higher base population). NCERT presents the classical three-stage model; modern demographers extend it to four or even five stages.
SVG — The Four-Stage Demographic Transition Curve
Figure 2.9: The four-stage Demographic Transition. The shaded region between the BR and DR lines is the natural increase — the engine of population growth.
Stage by Stage — A Closer Look
Stage I
High Stationary — Births & Deaths Both High
High fertility and high mortality. People reproduce more to compensate for deaths from epidemics and variable food supply. Population growth is slow. Most people are engaged in agriculture, where large families are an asset. Life expectancy is low; literacy is low; technology is primitive.
Two hundred years ago every country in the world was in this stage. Today only the most isolated forest-tribe communities remain here.
Stage II
Early Expanding — Population Explosion
Fertility remains high in the beginning of the second stage but starts to decline with time. Meanwhile, improvements in sanitation and health conditions cause mortality to fall sharply. Because of this gap, the net addition to population is high — this is the textbook population explosion.
Bangladesh, Peru, parts of sub-Saharan Africa, and (until recently) much of South Asia.
Stage III
Late Expanding — Births Begin to Fall
Death rates are now low and stable. Birth rates begin a sustained decline as urbanisation, female literacy and contraception spread. Population growth begins to slow.
Sri Lanka, Kenya, Brazil — countries in the middle of their transition.
Stage IV
Low Stationary — Both Rates Low
Both fertility and mortality decline considerably. The population is stable or grows slowly. Society is highly urbanised, literate and technologically advanced; family sizes are deliberately controlled.
Canada, Japan, the USA, Western Europe, Australia.
Stage V (post-2000)
Declining — Negative Growth
Birth rates fall below death rates and the population begins to shrink absolutely. Without immigration, total population declines. Society faces ageing, labour shortages and pension pressures.
Japan, South Korea, Italy, Germany, Russia, several Eastern European countries, and now China.
🔑 Key Insight
This pattern shows that human beings are extremely flexible and are able to adjust their fertility. Different countries today are at different stages of demographic transition — which is why a single global average hides very different national stories.
Examples of Countries at Each Stage
| Stage | Description | Examples (2025) |
|---|---|---|
| I — High Stationary | Both BR and DR high; slow growth | Isolated forest-tribes; pre-1850 world |
| II — Early Expanding | BR high; DR falling fast | Niger, DR Congo, Mali, Afghanistan |
| III — Late Expanding | BR falling; DR low | India, Bangladesh, Indonesia, Mexico, Egypt |
| IV — Low Stationary | Both BR and DR low | USA, France, UK, Australia, Canada |
| V — Declining | BR below DR; absolute decline | Japan, South Korea, Italy, Germany, Russia, China |
THINK ABOUT IT — Where Is India Today?
Bloom: L4 Analyse
India's CBR has fallen from above 40 per thousand in 1950 to about 19 per thousand in the mid-2020s; its CDR has fallen from above 20 to about 7. Its TFR is now around 2.0 — slightly below the replacement level of 2.1. Which stage of demographic transition does India occupy today, and which stage will it likely enter in the next 15-20 years?
✅ Pointers
India is now squarely in the late expanding stage (Stage III) with its birth rate still well above its death rate but falling steadily. Given a TFR already at replacement, India is on track to enter the low stationary stage (Stage IV) within the next 15–20 years. By the late 2050s, with population peaking around 1.7 billion, parts of India (particularly the southern states) may already be in Stage V, while the northern states will still be completing Stage III.
2.13 Population Control Measures
Family planning is the spacing or preventing of the birth of children. Access to family-planning services is a significant factor in limiting population growth and improving women's health. Propaganda, free availability of contraceptives and tax disincentives for large families are some of the measures which can help population control. Modern policy adds three more — education (especially of girls), female empowerment, and the provision of social security so that families do not need many children as old-age insurance.
Malthus and the Old Warning
📜 Theory — Thomas Malthus (1798)
Thomas Malthus, in his theory of 1798, stated that the number of people would increase faster than the food supply. Any further increase, he argued, would result in a population crash caused by famine, disease and war. The preventive checks (delayed marriage, smaller families) are better than the positive checks (war, disease, famine). For the sustainability of our resources, Malthus argued, the world will have to control rapid population increase.
— Thomas Malthus, An Essay on the Principle of Population, 1798
Malthus turned out to be right that resources matter — but wrong that food supply could not keep up. The Green Revolution dramatically expanded global food production in the 20th century, and the fertility transition (the decision by hundreds of millions of women to have fewer children) eased the pressure he had predicted. Yet his core question — can the planet sustain unlimited population growth without ecological collapse? — is alive and urgent in the climate-change era.
India's Family Planning Programme
India launched the world's first national family-planning programme in 1952. Initial decades emphasised sterilisation, but the post-1970s shift has been towards voluntary, target-free, women-centred approaches: spacing methods (IUDs, oral contraceptives, condoms), maternal–child health, and the linking of family-planning targets to broader goals of female literacy and the National Health Mission. Indian states like Kerala and Tamil Nadu — with high female literacy and strong public health systems — achieved replacement-level fertility decades before the national average.
China's One-Child Policy and its Reversals
The most dramatic experiment in modern population control was China's One-Child Policy, introduced in 1979. For more than three decades, urban couples in mainland China were limited to a single child, with strong financial and administrative incentives for compliance and severe penalties for breaches. The policy did slow China's growth — but it also produced an ageing society, a highly skewed sex ratio (favouring boys), and a shrinking workforce.
By 2015, recognising these unintended consequences, China relaxed the policy to a two-child policy. In 2021, the limit was raised to three children and the country began offering subsidies and parental leave to encourage births. China's population has now begun to decline outright — the policy's most lasting effect may be the demographic shadow it cast over the next half-century.
Education (esp. of women)
Girls' schooling delays marriage age, raises informed contraceptive use, and reduces TFR sharply. Kerala's experience is a textbook case.
Access to Contraception
Free or subsidised contraceptive supply, including spacing methods, is the single most cost-effective population-control intervention.
Female Empowerment
Property rights, work participation and decision-making power for women correlate strongly with smaller, healthier families.
Tax & Subsidy Tools
Tax disincentives for large families and child-spacing incentives — used carefully — can nudge fertility downward without coercion.
Maternal–Child Health
Lower infant mortality reduces the need for "insurance" births. India's NHM and ASHA programmes work along this axis.
Awareness & Propaganda
Mass-media campaigns, school curricula and community workers make family planning the social norm — slow but durable.
DISCUSS — Was the One-Child Policy Worth It?
Bloom: L5 Evaluate
Some economists argue China's One-Child Policy "saved" the country from catastrophe; others argue it caused as many problems as it solved. Marshal three points on each side. Conclude with whether you think India should ever consider a similar measure.
✅ Pointers
For: (a) accelerated per-capita income growth in the 1980s-90s; (b) freed female labour for industrialisation; (c) eased pressure on schools, hospitals, food. Against: (a) skewed sex ratio (millions of "missing" girls); (b) accelerated ageing — China is greying before it is fully rich; (c) coercion and human-rights costs. India: a coercive policy is incompatible with India's democratic structure and would magnify gender-imbalance problems. India's voluntary, women-centred approach has worked: TFR is already at replacement.
2.14 Putting It All Together — A Quick Summary
This chapter has carried you from the bare fact of 8 billion human beings on the planet, through the wildly uneven way they are distributed (90% on 10% of the land), the geographical, economic and social factors that drive that distribution, the components of population change (births, deaths and migration), the long-arc story of population growth, the doubling-time formula, and finally the demographic transition theory and the policy debates over population control. The recurring lesson is one of flexibility: human populations adjust to the technology, education and policy environment they live in. The geographer's job is not to predict the future on autopilot but to read the signals — birth rates, death rates, migration flows — and help society adjust before crises hit.
📝 Competency-Based Questions — Part 3
Scenario: A regional Asian summit invites four ministers to share their countries' demographic strategies. Niger's minister reports CBR 46, CDR 8, TFR 6.7. India's minister reports CBR 19, CDR 7, TFR 2.0. Japan's minister reports CBR 6.5, CDR 12.5, TFR 1.3 — and a population that has shrunk by 2 million in five years. China's minister reports a recent shift from a one-child to a three-child policy after population began to decline. The summit chair asks the students in the audience to map each country onto the demographic transition curve.
Q1. Which stage of the demographic transition does Niger best fit?
L2 UnderstandAnswer: (B) Stage II — Early Expanding. Niger has a very high birth rate (46) and a low death rate (8). The natural-growth rate is 38 per 1,000, or 3.8% per year — close to the highest in the world. This is the textbook population-explosion pattern.
Q2. Japan's CDR is now greater than its CBR. What does this imply for the absolute size of Japan's population, and which stage does it indicate?
L4 AnalyseModel Answer: When CDR exceeds CBR, the natural growth rate is negative. Japan's natural growth rate is roughly −6 per 1,000 — its population is shrinking absolutely. This places Japan in Stage V — Declining of the (extended) demographic transition. Without significant immigration, Japan's working-age population is set to keep contracting through 2050, intensifying its ageing-society challenges.
Q3. Suggest three population-control measures Niger could adopt, ranked by likely impact, and explain why a coercive one-child-style policy would be a poor fit.
L5 EvaluateModel Answer: (i) Universal girls' schooling beyond age 16 — the most powerful single lever for fertility decline; delays marriage, builds aspirations. (ii) Free, accessible spacing contraceptives via primary health centres — the lowest-cost intervention with the fastest measurable effect on TFR. (iii) Maternal-and-child health investment — falling infant mortality breaks the "insurance birth" cycle. A coercive one-child-style policy would fail in Niger because (a) it would clash with cultural norms in a society that is largely rural and agrarian; (b) it would be administratively impossible without an intrusive state apparatus; (c) China's experience shows that even successful coercion leaves a lasting demographic and human-rights cost.
HOT Q. Design a one-page advisory note to a notional South Asian government that has just realised its population will start to shrink in 25 years. What three policy moves should it begin now — and why is "do nothing for now" the wrong answer? Reference at least two demographic-transition concepts from this chapter.
L6 CreateHint: Suggested moves: (a) capture the demographic dividend while the working-age population is still rising — invest aggressively in skills, infrastructure and female labour-force participation; (b) build a pension and elder-care system in advance — by the time it is needed, capacity-building takes 15-20 years; (c) frame a humane migration policy — countries that begin Stage V without an immigration safety valve face the steepest contraction. Chapter concepts to invoke: demographic transition stages III→IV→V, doubling time approaching infinity (zero growth), and the difference between natural growth and actual growth when migration matters.
⚖️ Assertion–Reason Questions — Part 3
Options:
(A) Both A and R are true, and R is the correct explanation of A.
(B) Both A and R are true, but R is NOT the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(A) Both A and R are true, and R is the correct explanation of A.
(B) Both A and R are true, but R is NOT the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
Assertion (A): Population growth is high in the first stage of demographic transition.
Reason (R): In Stage I, both birth rates and death rates are high, so the natural growth rate is small and population grows slowly.
Answer: (D) — Assertion is false: in Stage I (High Stationary) growth is slow, not high. Reason is true and explains why the assertion is false. Hence the answer is (D).
Assertion (A): China relaxed its One-Child Policy in 2015 and again in 2021.
Reason (R): Strict one-child enforcement had produced an ageing population, a skewed sex ratio and a shrinking labour force.
Answer: (A) — Both true and directly linked. The 2015 move to a two-child policy and the 2021 move to a three-child policy were both responses to precisely the demographic problems described in the reason.
Assertion (A): Education of women is one of the most powerful population-control measures.
Reason (R): Higher female literacy delays the age at marriage, increases informed contraceptive use and lowers Total Fertility Rate.
Answer: (A) — Both true. R explains exactly how education translates into lower fertility. Kerala's early demographic transition is the textbook Indian example.
2.15 NCERT Exercises — Full Model Answers
1. Choose the right answer from the four alternatives given below
(i) Which one of the following continents has the highest growth of population?
(a) Africa (b) South America (c) Asia (d) North America
Answer: (a) Africa. Africa is the world's fastest-growing continent, with several countries showing TFRs above 4 and natural growth rates above 2.5% per year.
(ii) Which one of the following is not an area of sparse population?
(a) The Atacama (b) South-east Asia (c) Equatorial region (d) Polar regions
Answer: (b) South-east Asia. The Atacama (hot desert), the equatorial rainforest and the polar regions are all sparsely populated for climatic reasons. South-east Asia, by contrast — with countries like Indonesia, the Philippines and Vietnam — is among the most densely populated regions of the world.
(iii) Which one of the following is not a push factor?
(a) Water shortage (b) Medical/educational facilities (c) Unemployment (d) Epidemics
Answer: (b) Medical/educational facilities. Better medical and educational facilities are pull factors — they attract migrants to a destination. Water shortage, unemployment and epidemics make a place unattractive and therefore push people out.
(iv) Which one of the following is not a fact?
(a) Human population increased more than ten times during the past 500 years.
(b) Population growth is high in the first stage of demographic transition.
(b) Population growth is high in the first stage of demographic transition.
Answer: (b) is not a fact. Population growth is slow in the first stage of demographic transition (High Stationary), not high — both birth and death rates are high and roughly cancel each other out. Statement (a) is correct: world population rose from about 500 million in 1650 to over 8 billion by the 2020s — more than a sixteen-fold increase.
2. Answer the following questions in about 30 words
(i) Name three geographical factors that influence the distribution of population.
Model Answer: The three principal geographical factors that influence population distribution are: (1) availability of fresh water, which makes river valleys densely populated; (2) landforms, with flat plains attracting and mountains repelling population; and (3) climate and soils, with comfortable Mediterranean climates and fertile loamy soils supporting dense populations while extreme deserts and poor soils sustain only sparse ones.
(ii) There are a number of areas with high population density in the world. Why does this happen?
Model Answer: High-density regions form where geographical, economic and social–cultural factors reinforce one another. Fertile river valleys with reliable water and gentle slopes (Ganga, Yangtze, Nile) support intensive agriculture; industrial belts (Kobe-Osaka, Ruhr) and mining belts (Katanga-Zambia) attract workers; cities draw rural migrants for jobs, schools and hospitals; and religious-cultural centres add a steady pilgrim and service-economy population. Together these draw 90% of humanity onto just 10% of the land.
(iii) What are the three components of population change?
Model Answer: The three components of population change are births, deaths and migration. Births and deaths together produce natural growth (Births − Deaths), while migration adds the third dimension that converts natural growth into actual growth: Births − Deaths + In-Migration − Out-Migration.
3. Distinguish between
(i) Birth rate and death rate.
Crude Birth Rate (CBR) is the number of live births per 1,000 people in a year, calculated as CBR = (B ÷ P) × 1000. It measures the fertility of a region.
Crude Death Rate (CDR) is the number of deaths per 1,000 people in a year, calculated as CDR = (D ÷ P) × 1000. It measures the mortality of a region.
The difference between CBR and CDR — the natural growth rate — is the most important single indicator of demographic dynamism. CBR is shaped chiefly by fertility behaviour, age at marriage and contraceptive use; CDR is shaped chiefly by sanitation, healthcare and the age structure of the population.
Crude Death Rate (CDR) is the number of deaths per 1,000 people in a year, calculated as CDR = (D ÷ P) × 1000. It measures the mortality of a region.
The difference between CBR and CDR — the natural growth rate — is the most important single indicator of demographic dynamism. CBR is shaped chiefly by fertility behaviour, age at marriage and contraceptive use; CDR is shaped chiefly by sanitation, healthcare and the age structure of the population.
(ii) Push factors and pull factors of migration.
Push factors are negative conditions at the place of origin that drive people away: unemployment, poor living conditions, political turmoil, unpleasant climate, natural disasters, epidemics and socio-economic backwardness.
Pull factors are positive conditions at the place of destination that attract migrants: better job opportunities and living conditions, peace and stability, security of life and property, and a pleasant climate.
The two sets of factors operate together — a single move usually involves both repulsion from the origin and attraction to the destination. A young person leaving a drought-hit village (push: water shortage; push: unemployment) for a city like Bengaluru (pull: IT jobs; pull: educational facilities) is a textbook combined-factor migrant.
Pull factors are positive conditions at the place of destination that attract migrants: better job opportunities and living conditions, peace and stability, security of life and property, and a pleasant climate.
The two sets of factors operate together — a single move usually involves both repulsion from the origin and attraction to the destination. A young person leaving a drought-hit village (push: water shortage; push: unemployment) for a city like Bengaluru (pull: IT jobs; pull: educational facilities) is a textbook combined-factor migrant.
4. Answer the following questions in about 150 words
(i) Discuss the factors influencing the distribution and density of population in the world.
Model Answer: The world's population is extremely unevenly distributed — about 90 per cent of people live on only 10 per cent of the land. This pattern is shaped by three families of factors. Geographical factors matter most: availability of fresh water makes river valleys (Ganga, Nile, Yangtze) the world's densest belts; flat plains and gentle slopes attract people while mountainous Himalayan zones repel them; pleasant Mediterranean climates draw populations while hot or cold deserts deter habitation; and fertile loamy soils sustain intensive agriculture. Economic factors intensify these patterns: mineral belts like the Katanga–Zambia copper region, industrial corridors like Kobe-Osaka in Japan, and rapidly urbanising cities all magnetise workers, traders and service providers. Social and cultural factors add a third layer: places of religious and cultural significance attract permanent populations, while political unrest drives people away. Government incentives can re-balance distribution. Where the three families reinforce each other — fertile, watered, industrialising and stable — densities run into the thousands per square kilometre, as in Bangladesh.
(ii) Discuss the three stages of demographic transition.
Model Answer: The Demographic Transition Theory describes how a region's population moves from high to low birth and death rates as it modernises. Stage I (High Stationary) is characterised by high fertility and high mortality. People reproduce more to compensate for deaths from epidemics and unstable food supplies. Most are engaged in agriculture, where large families are an asset; life expectancy is low, literacy is low and technology is primitive. Population growth is slow. Two hundred years ago, every country in the world was in this stage. Stage II (Early Expanding) sees fertility remaining high in the beginning but declining with time, while mortality drops sharply due to improvements in sanitation, vaccination and food supply. Because of this gap, the net addition to population is high — this is the textbook population explosion. Bangladesh and Peru are textbook examples. Stage III (Late / Low Stationary) sees both fertility and mortality decline considerably. The population is stable or grows slowly; society becomes urbanised, literate and technologically advanced; and family sizes are deliberately controlled. Canada, Japan and the United States are at this stage. Different countries today are at different stages — proving that human beings are extremely flexible and can adjust their fertility.
Map Skill
On the outline map of the world, show and name the following: countries of Europe and Asia with negative growth rate of population.
Model Answer: On a blank world political map, locate and label these countries showing negative natural growth (births < deaths) in recent years:
- Europe: Russia, Ukraine, Belarus, Latvia, Lithuania, Estonia, Bulgaria, Romania, Hungary, Croatia, Serbia, Bosnia & Herzegovina, Italy, Germany, Greece, Portugal.
- Asia: Japan, South Korea, China (recently turned negative), and Georgia/Armenia.
Project / Activity
(i) Has someone in your family migrated? Write about her/his place of destination. What made her/him migrate?
Project Pointers: Pick one family member (a parent, an uncle, a sibling). Write a short profile: (a) place of origin and place of destination (city, state, country); (b) type of migration — permanent / temporary / seasonal; (c) direction — rural-to-urban, urban-to-urban, etc.; (d) push factors at the origin (job scarcity, lack of higher education, family responsibilities); (e) pull factors at the destination (job offer, educational institute, marriage, peace and security); (f) one sentence on whether the move was successful by the migrant's own assessment. Suggested length: 150-200 words.
(ii) Write a brief report on the distribution and density of population in your state.
Project Pointers: Use the latest Census-of-India figures (or your state government's published demographic data). Cover: (a) total population and overall density (persons / sq km); (b) the most densely populated district and explain why (river valleys, industrial corridor, capital city); (c) the most sparsely populated district and explain why (forest, hill terrain, arid soils); (d) major geographical, economic and social factors that explain the pattern; (e) a short comment on recent migration trends — in-migration to your state's metros, out-migration from rural districts, etc. Add a simple sketch map of district-wise density. Suggested length: 250-300 words.
📚 Chapter 2 — Summary at a Glance
- People are a country's real wealth — they are the actual resources who put other resources to use.
- The world reached 6 billion in 1999, 7 billion in 2011, and 8 billion in 2022.
- Population is unevenly distributed: 90% on 10% of land; Asia holds 60% of humanity; the 10 most populous countries account for 60% of world population, with six of them in Asia.
- Density of population = Population ÷ Area, measured in persons per sq km. World average ≈ 62/km²; Bangladesh ≈ 1,100; Mongolia ≈ 2; Greenland ≈ 0.03.
- Distribution is shaped by three families of factors — geographical (water, landforms, climate, soils), economic (minerals, urbanisation, industrialisation) and social-cultural (religious significance, political stability).
- Population change has three components — births, deaths and migration. Natural Growth = Births − Deaths; Actual Growth adds net migration.
- Key rates: CBR = (B ÷ P) × 1000; CDR = (D ÷ P) × 1000; Natural Growth Rate = CBR − CDR; Total Fertility Rate ≈ 2.1 is replacement.
- World population grew from ~8 million pre-agriculture to 500 million by 1650, 1 bn (1820), 2 bn (1930), 3 bn (1960), 4 bn (1975), 5 bn (1987), 6 bn (1999), 7 bn (2011), 8 bn (2022). The 20th-century population quadrupled.
- Doubling time = 70 ÷ growth rate (%). Was 200 years before 1850, 80 years in early 1900s, 39 years in late 1900s, lengthening again today.
- Demographic Transition Theory: Stage I (high BR, high DR — slow growth); Stage II (high BR, falling DR — explosion); Stage III (BR falling, DR low — slowing); Stage IV (low BR, low DR — stable); Stage V (BR < DR — declining).
- Africa is the highest-growth continent; many countries in Europe and East Asia are in Stage V.
- Population control: family planning, propaganda, free contraceptives, tax disincentives, female education and empowerment, accessible maternal-child healthcare.
- China's One-Child Policy (1979) was relaxed to two-child (2015) and three-child (2021); China's population is now declining.
- Thomas Malthus (1798) warned that population would outstrip food supply; preventive checks are better than positive (war, famine, disease) checks.
🗝 Key Terms
Population Distribution: the way people are spaced over the earth's surface.
Population Density: persons per sq km. Density = Population ÷ Area.
Crude Birth Rate (CBR): live births per 1,000 people per year.
Crude Death Rate (CDR): deaths per 1,000 people per year.
Natural Growth Rate: CBR − CDR.
Actual Growth: Births − Deaths + In-Migration − Out-Migration.
Total Fertility Rate (TFR): average children per woman; 2.1 = replacement.
Doubling Time: years to double = 70 ÷ growth rate (%).
Migration: permanent / temporary / seasonal movement of people.
Place of Origin: place a migrant moves from.
Place of Destination: place a migrant moves to.
Immigrant / Emigrant: the same person, viewed from arrival vs departure.
Push Factors: conditions at the origin that drive people away.
Pull Factors: conditions at the destination that attract migrants.
Demographic Transition: orderly journey from high BR/DR to low BR/DR through stages.
Agricultural Revolution: shift from hunting-gathering to settled agriculture (~8000 BCE onwards).
Industrial Revolution: 18th-century onwards, mechanisation and urbanisation.
Family Planning: spacing or preventing the birth of children.
One-Child Policy: China's 1979 control measure; relaxed 2015 (two) and 2021 (three).
Population Control: measures (education, contraception, empowerment, incentives) to manage growth.
Frequently Asked Questions
What is the demographic transition theory?
The demographic transition theory describes how a society's population moves from high birth and death rates to low birth and death rates as it develops economically. The classical NCERT model has three stages and explains population growth patterns over time.
What are the three stages of demographic transition?
Stage 1 — high fluctuating: high birth and death rates, slow growth (pre-industrial). Stage 2 — early expanding: high birth, falling death rate, rapid growth (industrialising). Stage 3 — low fluctuating: low birth and death rates, slow growth (developed).
Which countries are in stage 3 of demographic transition?
Most developed countries — USA, Canada, Japan, Australia, UK, Germany, France and other Western European nations — are in stage 3, with low birth rates, low death rates and slow or even negative natural growth.
What are the main population control measures?
Population control measures include propagation of family planning, female education, women empowerment, raising legal age of marriage, providing contraceptives, financial incentives for small families, and improving healthcare and child survival rates.
Why does population control depend on female education?
Female education delays marriage, increases family-planning awareness, raises labour force participation and reduces preference for large families. Educated women have fewer, healthier children and stronger reproductive choice — lowering fertility rates.
What is Thomas Malthus's theory of population?
Thomas Malthus argued in 1798 that population grows geometrically (1, 2, 4, 8) while food supply grows only arithmetically (1, 2, 3, 4). Without checks like famine, disease or moral restraint, population would outstrip food supply leading to misery.
What topics do NCERT Chapter 2 exercises cover?
Chapter 2 exercises cover MCQs on population distribution, density and growth, short answers on doubling time and migration, and long answers on demographic transition theory and population control with world examples.
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