Question

What is it meant by natural increase, and what does it have to do with the birthrate and the death rate?

Answer 1

Within the study of demography, the rate of natural increase (RNI) is classified as the crude birth rate minus the crude death rate.

Answer 2

Natural increase is the difference between the number of births and number of deaths during a year. As it is a natural increase it means there are more births then deaths in a year increasing the population.