The natural rate of population increase is the

a. difference between the birth rate and the death rate

b. increase in a country’s immigration population in a given year

c. total number of births in a year

d. difference between the current and prior years birth rate

The natural rate of population increase is the A. Difference between the birth rate and the death rate.

Explanation:

As it is defined, the rate of natural increase makes reference to the difference between the birth rate and the death rate in the lapse of a year, divided by the number of people alive in the half of such year, multiplied by a certain number. Migration effects are not included in this measure.

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equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.