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Glossary and Important Information - Population | Social Studies (SST) Class 9 PDF Download

Glossary and Important Information

1. Natural resources : They are various useful gifts which are provided by nature like soil, water, minerals etc.

2.Census : Official enumeration of population along with certain economic and social statistics in a given teritory, carried out on a specific day. It is generally conducted periodically.

3. Migration : The movement of people across regions and territories.

4. Birth Rate : The number of infants born for every 1000 persons in a year.

5. Death Rate : The number of deaths per 1000 persons a year is called death rate.

6. Sex Ratio : Number of women per 1000 of men population.

7. Density of population : The average number of persons per unit area.

8. Metropolis : A very large city or agglomeration of population in a district or a country and is often a chief centre seat of some form of activity administrative, commercial or industrial.

9. Natural growth rate of population : Difference between birth rate and death rate.

10. Dependency ratio : The ratio between economically working population and the dependent population is known as the dependency ratio.

11. Demography : It is the study of the population statistics, trends and changes over a time based on birth rate, death rate and fertility rate.

12. Age composition : The number of people in different age groups in a country.

13. Occupational structure : It refers to the distribution of country’s people according to different occupations.

14. Population growth : It is the change in the number of inhabitants of a country during a specific period of time.

15. Literate :  According to the census 2001, a person aged 7 yrs and above who can read and write with understanding in any language is treated as literate.

16. Adolescence : It is a period in which a person is no longer a child and not yet an adult. Such persons are grouped in the age group of 10-19 years.

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FAQs on Glossary and Important Information - Population - Social Studies (SST) Class 9

1. What is population?
Ans. Population refers to the total number of individuals, or people, living in a specific area or country. It is a measure of the size of a human community.
2. Why is population important?
Ans. Population is important because it helps in understanding the social, economic, and environmental dynamics of a region. It affects the availability of resources, infrastructure development, healthcare services, and overall quality of life.
3. What factors contribute to population growth?
Ans. Several factors contribute to population growth, including birth rate (the number of births per 1,000 people in a year), death rate (the number of deaths per 1,000 people in a year), and migration (both immigration and emigration).
4. How is population density calculated?
Ans. Population density is calculated by dividing the total population of a region by its land area. It is often expressed as the number of people per square kilometer or square mile.
5. What are the consequences of overpopulation?
Ans. Overpopulation can lead to various consequences, such as strain on resources, unemployment, poverty, inadequate healthcare and education facilities, environmental degradation, and increased competition for essential services. It can also put pressure on infrastructure and lead to social and economic instability.
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