Question

What is meant by population growth? Explain the two ways in which it is expressed?

Answer 1

pollution means surroundings are dirty and harmful so we need to start to  grow trees and start eradicating this problem

Answer 2

An increase in the number of people that reside in a country, state, county, or city. To determine whether there has been population growth, the following formula is used: (birth rate + immigration) - (death rate + emigration).