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kenny6666 [7]
3 years ago
8

In 1980 the United States reached zero population growth, yet the overall population of the US still increased. Explain

Biology
1 answer:
VMariaS [17]3 years ago
3 0

Answer:

Zero population growth, sometimes abbreviated ZPG (also called the replacement level of fertility),is a condition of demographic balance where the number of people in a specified population neither grows nor declines, considered as a social aim by some.[by whom?] This is related to the optimum population theory, where a certain population is the ideal towards which countries and the whole world should aspire in the interests of accomplishing long-term environmental sustainability. What it means by 'the number of people neither grows nor declines' is that births plus in-migrants equal deaths plus out-migrants.

Explanation:

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