Class 9 Social Science - BIHAR
Population
The chapter 'Population' in Class 9 Social Science (Geography) explores the pivotal role of human beings as resources in a nation's development. It covers key aspects such as population size, distribution, density, growth, and the processes of population change including birth rates, death rates, and migration. Students will learn about the characteristics of India's population, its age composition, sex ratio, literacy rates, and the National Population Policy. This chapter is highly important for the Bihar Board (BSEB) examinations as it tests students' understanding of demographic data and socio-economic planning.
Start Learning FreeKey Concepts
Population Distribution
The pattern of where people live across a region or country, which is uneven due to various physical, climatic, and economic factors.
Population Density
The average number of people living per square kilometer of area, calculated to show how crowded a region is.
Sex Ratio
The number of females per 1,000 males in a given population, serving as an important social indicator of gender equality.
Age Composition
The breakdown of a population into different age groups—children (0-14 years), working-age adults (15-59 years), and aged people (60+ years).
Migration
The movement of people across regions and territories, which can be internal within a country or international between countries.
National Population Policy
A strategic framework initiated by the government to improve reproductive health care, reduce infant mortality, and promote adolescent health.
Important Formulas
Board Exam Info
In the Bihar Board (BSEB) Class 9 Social Science examinations, this chapter typically carries around 6 to 8 marks. Questions usually include objective type (multiple choice), short answer questions defining key demographic terms, and long answer questions explaining the factors affecting population growth and distribution.
Frequently Asked Questions
Why is population considered a crucial resource for a country?
Population is the base for all other resources because humans use their skills and knowledge to transform natural elements into valuable resources for economic development.
What is the difference between birth rate and death rate?
Birth rate is the number of live births per 1,000 people in a year, whereas death rate is the number of deaths per 1,000 people in a year.
Why does India have an uneven population distribution?
India's uneven population distribution is caused by variations in physical terrain, climatic conditions, availability of water, and industrial or economic opportunities across different states.
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