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Under which condition will the effect of a birth-rate-reduction policy appear slowly?

Answer and explanation

Correct answer: When the young reproductive-age group is large

The direct answer is A. A birth-rate-reduction policy may reduce the average number of children per family, but the total number of births may not fall immediately when a large group of young adults is already present. Many people in the reproductive-age group can still have children, so population momentum continues even after fertility begins to decline. A is correct because it explains why the policy effect is delayed. B would remove the main group capable of producing births, so it does not describe a slow policy effect caused by population momentum. C makes the question impossible because births are already zero. D describes out-migration, not the demographic reason for a delayed fertility response. Memory cue: a large young age structure can keep births high for some time.

Related tags

Birth-Rate PolicyPopulation MomentumReproductive AgeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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