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A country's fertility rate is falling, yet the total number of births remains high for several years. What is the most appropriate reason?

Answer and explanation

Correct answer: A large number of people are in reproductive ages

Correct answer: B, a large number of people are in the reproductive-age group. Fertility rate means the average number of children born per woman, whereas the total number of births also depends on how many women are in childbearing ages. Earlier high fertility may have produced a very large young population. When this large group reaches reproductive age, many births can occur even after the average number of children per woman begins to fall. This continuing effect is called demographic momentum. A is wrong because fertility directly affects births, although it is not the only factor. C is wrong because the death rate does not explain why births remain high. D is wrong because stopping migration does not by itself create a large number of births. Memory cue: falling fertility does not immediately mean falling births when the reproductive-age population is large.

Related tags

Demographic MomentumFertility DeclineReproductive AgePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeographyClass 12 Mcq

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