Population: NBSE class 9 chapter 17 Population answers, notes

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Get notes, questions, solutions, textual answers, pdf, and extras for Chapter 17: Population, which is a part of the social science class 9 syllabus for students studying under the Nagaland Board of School Education. However, these notes should be used only for references and additions/modifications should be made as per the requirements.


Population is the total number of people in a political or geographical area at a particular time. This chapter deals with the human population, which is an important topic in the world. It is estimated that the world has about 753 crores of people right now, and out of these, more than 121 crores are living in India. India is the second most populous country in the world, the first being China.

India has a huge number of people and it is both good news and bad news for the country. It is good news in the sense that we have a large labour force which can improve our economy rapidly. On the other hand, it is also not good for the country because we are running out of resources. In India states like Uttar Pradesh and Bihar have the highest number of population.

In this chapter, you will learn about the impacts of population growth, how it is affecting our society, and what are the different aspects of it.

Textual questions and answers

Choose the correct answer

1. Which state has the lowest density of population as per Census 2011?

(a) Mizoram (b) Arunachal Pradesh (c) Sikkim (d) Manipur

Answer: (b) Arunachal Pradesh

2. What is the key principle underlying the National Population Policy’s approach to population issues?

(a) Encouraging unrestricted population growth (b) Promoting population control by any means necessary (c) Voluntary and informed choice in family planning (d) Promoting early marriages and large families

Answer: (c) Voluntary and informed choice in family planning

3. Identify the statements that describe correctly focus of NPP 2000 on adolescents.

I. popularise delayed marriage
II. encourage delayed pregnancies
III. make contraceptive services accessible and cheaper
IV. strengthen laws to encourage child marriages

(a) I & II are correct
(b) II & III are correct
(c) I, II, III are correct
(d) Only IV is correct

Answer: (c) I, II, III are correct

4. There are two statements marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below.

Assertion (A) The main reason behind high growth rate of India’s population is the ever growing gap between the birth rate and death rate.
Reason (R) The decline in death rate has been due to success achieved in control of epidemics and advancement in medicine.

(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 correct but (R) is wrong
(d) (A) is wrong but (R) is correct

Answer: (a) Both (A) and (R) are true and (R) is the correct explanation of (A)

5. Consider the statements given below and choose the correct answer.

Statement I: Migration is a major factor of population change.
Statement II: Internal migration is mostly from rural to urban areas.

(a) statement I is correct and II is incorrect
(b) statement I is incorrect and II is correct
(c) Both I & II are incorrect
(d) Both I & II are correct

Answer: (d) Both I & II are correct

Very short answer type questions

1. What is a population?

Answer: Population is the total number of persons in a political or geographical area at a particular time.

2. Define ‘Demography’.

Answer: Demography is the statistical analysis and study of the population.

3. What is overpopulation?

Answer: Overpopulation is a situation when the resources are too few for the size of the population.

4. List the factors that determine the population change.

Answer: Three major factors that determine the population change are:
(i) birth rate
(ii) death rate
(iii) migration.

5. What is meant by internal migration?

Answer: When the migration of people takes place within the country, it is called internal migration.

Short answer type questions

1. Differentiate between the working population and the dependent population.

Answer: A person becomes a member of the working population when he becomes involved in productive work and also has the required qualifications for the work.

On the other hand, the people either in the age group of below 15 years or in the age group of over 64 years are called the dependent population. They depend on the working population for their needs.

2. What has caused internal migration in India?

Answer: Internal migration in India is caused by vast and various employment avenues, good education and better living standards lure the rural folks to the towns and cities causing internal migration.

3. How does migration influence population growth?

Answer: Migration is the movement of people from one area to another. Migration (emigration) of people from rural to urban areas also led to a steep growth in the urban population in India. Migration (immigration) of people from India to Europe, the Middle East, and Canada led to a decrease in the population of India.

4. What do you mean by optimum population?

Answer: Optimum population of a country refers to the size of the population which produces the maximum amount of goods and services with the help of its resources.

Long answer type questions

1. How is the development of the economy related to the occupational structure?

Answer: Economy and its development and occupational structure are closely related. When a larger number of the population are involved in secondary and tertiary activities in a country, that country has a higher level of income. Lower levels of income are observed in countries where people are mostly engaged in agriculture. In India, the proportion of the population dependent on agriculture was around 61% in 2000. The proportion of the population that is engaged in secondary and tertiary sectors was around 18% and 2I% respectively. People have now become increasingly engaged in secondary and tertiary activities and this has led to faster growth of our economy.

2. Write about the type of population found in the Northern Plains, Tamil Nadu and Kerala. Why is there a sparse population in some parts of India?

Answer: High density of population is observed in Kerala, Tamil Nadu and the Northern Plains. This is because these states have plain terrain along with rich, fertile soil, moderate climate and a lot of rainfall.

There is a sparse population in some parts of India due to unfavourable climatic conditions and rugged terrain in these states.

3. What problems occur when the population in cities grow faster than the capacity of the economy to support them? [HOTS]

Answer: When the population in cities grow faster than the capacity of the economy to support them, the following problems occur:

I. Overpopulation leads to the collapse of infrastructure in the cities.
II. Overpopulation leads to high density, which results in a shortage of living space and other resources.
III. Often, a high population leads to a scarcity of jobs available and this causes a problem of unemployment.
IV. Unemployment and the fight for resources sometimes lead to petty crimes in the cities.

4. Summarise the National Population Policy 2000.

Answer: The government of India announced in February 2000, the National Population Policy (NPP) with the following objectives:

(i) The immediate objective was to address the needs for contraception, healthcare infrastructure, and basic reproductive and child health.
(ii) The medium-term objective was to bring the Total Fertility Rate (TFR) to replacement levels of 2.1 by 2010.
(iii) The long-term objective was to achieve a stable population by 2045.

The National Population Policy (NPP) 2000 is now working towards stabilising the population by 2045. According to the NPP 2000, this is to be done by :

(i) raising the marriageable age.
(ii) making school education free and compulsory up to the age of 14 years.
(iii) reducing drop-outs at primary and secondary levels.

5. Explain the following terms :
(i) Density of population (ii) Birth Rate (iii) Death Rate

Answer: (i) The average number of people who live in a fixed area is called population density or density of population.

(ii) Birth Rate is the number of live births per thousand persons in a year.

(iii) Death Rate is the number of deaths per thousand people in a year.

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8 thoughts on “Population: NBSE class 9 chapter 17 Population answers, notes”

  1. Ankit Kumar jaiswal

    I have not written the notes in the class and the sir have told my friends to give me the thank you ❤️

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