Question

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

Answer 1

An increase in the number of people that reside in a country, state, county, or city.

 It is expressed in terms of:
1) Absolute Increase/ Absolute numbers: This is the no. of people added to the population each year or decade. It is obtained by subtracting the old population from the current population 
2) Annual Growth Rate: This is the pace or rate of increase of population expressed in terms of percentage.