If a country’s birth rate is 15 per 1,000 population per year and the death rate is 10 per 1,000 population per year, what is the annual population growth rate?

The natural population growth rate is the birth rate minus the death rate. Subtract 10 deaths per 1,000 from 15 births per 1,000: 15 − 10 = 5 per 1,000 per year. So the annual population growth rate is 5 per 1,000, choice D.

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