Population Growth – Long Answer Questions
Medium Level (Application & Explanation)
Q1. Differentiate between absolute increase and percentage growth rate. Explain with simple examples.
Answer:
- Absolute increase is the difference between the earlier and later population.
- If a town grows from 5,000 to 5,600, the absolute increase is 600.
- Percentage growth rate shows the rate of change relative to the total population.
- A 3% growth on 50,000 adds 1,500 people in that year.
- Use absolute increase to see how many people were added.
- Use percentage growth rate to compare how fast different areas are growing.
Q2. Using the given data, identify the peak decade of India’s population growth and explain what it means.
Answer:
- The peak decade was 1961–1971 with a 24.8% growth rate.
- This means the population grew fastest during that decade.
- Earlier decades also showed rapid growth, especially after independence.
- Better healthcare reduced deaths, so more people survived.
- This led to a higher number of births surviving to adulthood.
- The result was a sharp rise in total population.
Q3. Explain why a small percentage growth can still add many people. Give two practical examples.
Answer:
- A small percentage on a very large base adds big numbers.
- A 1% rise on 1 billion adds 10 million people.
- A city of 1 million growing at 0.5% adds 5,000 people in a year.
- So, even a low rate can create high demand for services.
- This affects housing, schools, and transport planning.
- Planners must watch both the rate and the base population.
Q4. Describe India’s population change from 1951 to 2011 and explain why the absolute increase stayed high.
Answer:
- India’s population rose from 361 million (1951) to 1,210 million (2011).
- From 1951 to 1981, the population increased by 322 million.
- The 1990s alone added about 182 million people.
- The growth rate started to decline after 1981.
- But the base population kept growing, so the absolute increase stayed large.
- A big base means even a lower rate produces many more people.
Q5. Why is the growth rate declining in India, and why does the population still rise?
Answer:
- The growth rate declines due to better contraceptive use.
- Women’s education rises, so childbirth is often delayed.
- Families prefer smaller sizes as income and awareness grow.
- Yet the total base is large, so more people are still added each year.
- This is because many people are in reproductive age groups.
- So, the rate falls, but the number still climbs.
High Complexity (Analysis & Scenario-Based)
Q6. A city has 1,000,000 people and grows at 0.5% per year. Analyze the impact and suggest planning steps.
Answer:
- A 0.5% rise adds 5,000 people each year.
- This needs extra housing, water, and public transport.
- Schools and clinics must plan for steady intake.
- The city should map where growth is happening fastest.
- It can improve infrastructure and promote public services in those areas.
- Monitoring both annual increase and future trends helps sustainable planning.
Q7. Compare the 1951–1961 growth rate (21.51%) with 2001–2011 (17.7%). What does this trend suggest for policy?
Answer:
- The growth rate fell from 21.51% to 17.7%.
- This suggests progress in family planning and health awareness.
- Yet the population kept rising due to a larger base.
- Policies should continue education for women and access to contraception.
- They should also improve healthcare and child survival responsibly.
- Planning must balance population needs with resource limits.
Q8. Your classmate says, “Lower growth rate means fewer people added.” Do you agree? Explain with numbers.
Answer:
- Not always. It depends on the base population.
- A 3% rise on 50,000 adds 1,500 people.
- A 1% rise on 1,000,000 adds 10,000 people.
- So, a lower rate can add more people if the base is big.
- This is why absolute numbers can stay high even when the rate drops.
- We must read both rate and absolute increase together.
Q9. India became the most populous country in 2023. Analyze two opportunities and two challenges of this change.
Answer:
- Opportunity: A large workforce can boost production and innovation.
- Opportunity: A big domestic market supports business growth.
- Challenge: More pressure on food, water, and energy.
- Challenge: Need for jobs, housing, and public services for all.
- The key is sustainable planning and skill development.
- Balanced growth protects resources and improves quality of life.
Q10. As a planner, how would you further reduce the growth rate while meeting people’s needs?
Answer:
- Expand family planning services and awareness.
- Improve girls’ education to delay marriage and childbirth.
- Strengthen maternal and child healthcare for safe families.
- Promote economic opportunities so families choose smaller sizes.
- Track both percentage change and absolute numbers for decisions.
- Ensure all plans are people-centered and resource-smart.