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If a birth-reduction policy is successful but the young population is large, why can policy results appear slowly?

Answer and explanation

Correct answer: Due to population momentum

Answer: A. Population momentum is the continued growth that can occur after fertility or birth rates begin to fall. A large young population contains many people who are entering or are already in the childbearing ages. Even if each family has fewer children than before, the large number of potential parents can produce a considerable number of births for some time. The population may therefore continue to grow before the smaller family size is fully reflected in the total population. A is correct. B is wrong because death rates do not become zero and that is not the explanation. C is wrong because population momentum is mainly connected with age structure and fertility, not the impossibility of migration. D is wrong because stopping a census cannot stop demographic change. Memory cue: fewer children per family may still mean many births when there are many young adults.

Related tags

Population MomentumFertilityYoung PopulationPolicyPopulation GrowthPopulationGeographyClass 9 Mcq

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