A) The difference of growth between male and female.
B) The difference in population between urban and rural area.
C) The number of births per thousand people.
D) The difference between birth and death rates.
Correct Answer: D
Solution :
In demographics and ecology, the ?population growth rate? is the rate at which the number of individuals in a population increases in a given time period as a fraction of the initial population. Since Births and deaths are natural causes of population change, the difference between the birth and death rates is the population growth rate. So Population Growth Rate = Crude Birth Rate - Crude Death Rate
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