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Reaching the Age of Adolescence

NCERT 9th Class (CBSE) Social Science: Population

Question: Name the organisation which provide us with information regarding the population of our country.

Answer: The Census of India.

Question: State the position of India in terms of population size.

Answer: Second.

Question: State the total population of India according to the 2011 census.

Answer: Around 1210.2 million.

Question: Which is the
1. Most populous state of India?
2.The least populous state of India?


  1. Most populous: Uttar Pradesh
  2. Least populous: Sikkim

Question: State the total percentage which India accounts to the total population of the world?

Answer: About 16.7 per cent.

Question: What is India’s share in the total area of the world ?

Answer: Around 2.4 per cent.

Question: What is the annual growth rate of population of India?

Answer: Approximately 1.58 per cent.

Question: Which is the most densely populated country of the world?

Answer: India, about 382 persons per sq km.

Question: Which is the most populated country, in terms of population size?

Answer: China

Question: How would you define the term ‘density of population’ ?

Answer: Number of persons living per unit of area (per sq km).

Question: What is the growth of population?

Answer: It refers to the change in the number of inhabitants of a country / territory during a specific period of time.

Question: ‘Growth of population is expressed in two ways’. Mention.


  1. Absolute number
  2. Percentage change

Question: Define the annual growth rate of population.

Answer: It is the rate of increase of population in the base population.

Question: Name the state having the highest and the lowest density of population.

Answer: The state having the highest density of population is Bihar (1102 persons per square km) and the lowest is Arunachal Pradesh (17 persons per square km). Both these are approximate figures.

Question: State two factors which affect the distribution of the density of population.


  1. Climate
  2. Natural resources

Question: State any two implications of the high density of population.


  1. Poverty
  2. Unemployment

Question: Give two reasons responsible for unfavourable sex-ratio.


  1. Women are often done to death by dowry seekers.
  2. Lack of education and orthodox customs also go against women folk.

Question: What do you understand by the growth rate?

Answer: The “growth rate” is the annual percentage increase in the population of a country.

Question: Why is the North India, plain thickly populated? Give two reasons.


  1. The soil of the region is fertile.
  2. There are large number of factories in this area which provide employment opportunities.

Question: Why is there less population in Rajasthan?


  1. The soil in Rajasthan is less fertile.
  2. The climate of the region is of extreme type.

Question: Define the term ‘birth rate’.

Answer: The ‘birth rate’ is the proportion of the number of births in a place in particular duration to the total population, usually expressed as a quantity per thousand people per year.

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