The different between birth rate and death rate is known as

The difference between birth rate and death rate is known as the natural growth rate. The natural growth rate is a measure of population change that indicates whether a population is increasing or decreasing over time. If the birth rate is higher than the death rate, the natural growth rate will be positive and the population will be increasing. On the other hand, if the death rate is higher than the birth rate, the natural growth rate will be negative and the population will be decreasing. The natural growth rate is an important factor in population studies and can have significant implications for social and economic development.