Question

Write short notes on the following:
1. Population change
2. Life expectancy
Sex ratio
4. Population pyramid​

Answer 1

Answer:

Population change refers to the following factors:-

1. Birth rate- It is the no. of live births per 1000 persons in a particular period of time

2. Death rate- It is the no. of live deaths per 1000 persons in a particular period of time.

3.Migration- It refers to the movement of people within states or countries... migration can be either internal(within the country) or international(between 2 different countries)

HOPE THIS HELPS!!