Q- Answer the following questions briefly.
1. Why is the rate of population growth in India declining since 1981?
Answer- After 1980, the use of Birth control instruments increased rapidly. So that the population growth rate of India started declining since 1981.
2. Discuss the major components of the population growth.
2. The main components of the population growth are:
1. Birth rate: The number of live births per thousand of population per year is called as Birth Rate of that country.
2. Death Rate: The ratio of deaths to the population of a particular area or during a particular period of time, it is usually calculated as the number of deaths per thousand people per year.
3. Migration: Seasonal movement of people or group of people from one place to another is commonly known as Migration.
3. Define age structure, death rate and birth rate.
3. Age structure: The age structure of a population refers to the number of people in different age groups in that population.
Birth rate: The number of live births per thousand of population per year is called as Birth Rate of that country.
Death Rate: The ratio of deaths to the population of a particular area or during a particular period of time, it is usually calculated as the number of deaths per thousand people per year.
4. How is migration a determinant of population change?
4. The movement of people across regions and territories. It is a determinant factor of population change as it changes the demographics (size and composition) of both the areas of departure and arrival. There are two types of migrations:
1. Internal migration
2. International migration