CBSE NCERT Solutions of Class 9 Geography Chapter 6, Population | CBSE Guide NCERT Answers

 

Class 9, NCERT Geography - Contemporary India I

Chapter 6, POPULATION

NCERT Solutions, NCERT Answers of geography textbook exercise questions

Question 1: Choose the right answer from the four alternatives:
(i) Migrations change the number, distribution and composition of the population in -
(a) The area of departure
(b) The area of arrival
(c) Both the areas of departure and arrival
(d) None of the above
(ii) A large proportion of children in a population is a result of -
(a) high birth rates
(b) high life expectancies
(c) high death rates
(d) more married couples
(iii) The magnitude of population growth refers to -
(a) The total population of an area
(b) The number of persons added each year
(c) The rate at which the population increases
(d) The number of females power thousand males
(iv) According to the census 2001, a "literate" person is one who -
(a) can read and write his/her name
(b) can read and write any language
(c) is 7 years old and can read and write any language with understanding
(d) knows the 3 'R's (reading, writing, arithmetic)
Answer : (i) - c. (ii) - a. (iii) - b. (iv) - c.
Question 2: Answer the following questions briefly.
(i) Why is the rate of population growth in India declining since 1981?
(ii) Discuss the major components of population growth.
(iii) Define age structure, death rate and birth rate.
(iv) How is migration a detrimental factor of population change?
Answer (i): There are quite a few reasons because of which the rate of population growth in India has been declining since 1981. Some of the reasons are as follows:
(a) Family planning programmes, initiated by the government have been spreading awareness among the people about the benefits of delayed marriages for girls and also small family norm.
(b) Educational programmes have improved the literacy rate. This has helped more and more people to understand the benefits of a small family. Also population control measures taken by the Govt and several NGOs have been quite effective.
As a result of the above, birth rates declined rapidly since 1981 which caused a decline in the rate of population growth.
Answer (ii): The three major components of population growth are the following -
(a) Birth Rate
The greater the birth of children, the higher will be population growth. On the other hand, the lesser the birth of children, the lower will be population growth.
(b) Death Rate
The higher death rate will reduce the population growth but the lower death rate will add to the population growth.
(c) Migration
Migration is the movement of the people from one country to the other country. If this process of migration is within the country, it does not bring any change in the size of population. But migration to other countries does affect the size of population.
Answer (iii):
Age Structure
The age structure of a population refers to the number of people in the different age groups in a particular country. The population of a country is composed of children of 0-14 years, adults of 15-59 years, senior citizens aged 60 years and above. The children and senior citizens are not producers or earners as such they depend on the adults for their maintenance and hence they add to the dependency ratio.
Birth Rate and Death Rate
Birth Rate is the number of live births per thousand persons in a year whereas Death Rate means the deaths per thousand persons in a year. The difference between birth and death rate gives us the growth rate of population of any country in a year.
The widening gap between the birth and death rates is one of the main reasons for higher growth rate in India.
Answer (iv): Migration is a detrimental factor of population change, because -
(a) During migration people move from one region to another region. The change in population because of this movement can be internal as well as international.
(b) International migration changes the size of the population whereas internal migration does not change the size of the population but influences the distribution of the population within the nation.
(c) Migration also changes the composition of urban and rural population in terms of the age and sex ratios. In India the rural-urban migration has resulted in a steady increase in the percentage of population in cities and towns.
Thus, migration is a detrimental factor of population change as it affects the demographics of both the areas of departure and arrival.

Question 3: Distinguish between population growth and population change.    
Answer: Population is a dynamic phenomenon. Population Growth and Population Change can be distinguished as follows:
Population Growth
Growth of population refers to the increase in the number of inhabitants of a country or region during a specific period of time. Population growth can be expressed in two ways: (1) in terms of absolute numbers, (2) in terms of percentage.
The absolute number is the magnitude of increase which is obtained by simply subtracting the earlier population from the later population. In terms of percentage we express the rate of increase of population per annum which is also known as ‘annual growth rate’.
Natural increase and immigration are the major causes for population growth.
Population Change
Change in population refers to the change in distribution, composition or size of a population during a specific period of time. Some major causes of population change are - natural increase and migration (immigration, emigration). 


Cbse Ncert Solution of Class IX Geography Chapter 6, Population
Question 4: What is the relation between occupational structure and development?
Answer: The distribution of population according to the different types of occupation is referred to as ‘Occupational Structure’. Occupational Structure has a great impact on development. Occupations are generally divided into four categories - primary, secondary, tertiary and quaternary. Primary occupations include - agriculture, animal husbandry, fishing and forestry. Secondary occupations include - primarily manufacturing industries. Tertiary occupations include services like - doctors, teachers, etc. while quaternary occupations include the more intellectual occupations.
The proportion of people engaged in different activities reflects the economic development of a country. Developed nations have a high proportion of people in secondary and tertiary activities. Developing nations such as India, Sri Lanka etc. tend to have higher proportion of their workforce engaged in primary activities.      
Question 5: What are the advantages of having a healthy population?
Answer: There are several advantages of having a healthy population -
(i) Health is an important factor of population composition which boosts the development. A healthy person is much more efficient and productive and therefore, a healthy population is an asset for the nation.
(ii) Absenteeism is low and capability is high where workers are healthy.
(iii) Economic development of a country depends on the quality, ability and efficiency of its people. So, healthy population is the most important criterion for the prosperity and development of any country.          
To be continued ...

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