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If large numbers of people aged 25 to 40 migrate out of a region, what effect may occur on future births?

Answer and explanation

Correct answer: Future births may decline because the reproductive-age population becomes smaller

The number of births depends partly on how many people are in reproductive ages, as well as on fertility rates. Out-migration of many people aged 25 to 40 can reduce the number of potential parents in the region. If fertility rates among those who remain do not change, the smaller reproductive-age population may result in fewer births. Therefore, option A is correct. The effect is possible rather than certain because fertility rates and other factors also matter.

Related tags

Age StructureOut-MigrationFuture BirthsReproductive-Age PopulationPopulation CompositionGeographyClass 12 Mcq

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