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Which situation may develop if a very low birth rate persists for a long time?

Answer and explanation

Correct answer: Share of elderly population rises

A persistently very low birth rate means that relatively few children enter the population each year. Over time, younger age groups become smaller compared with older groups. If older generations continue to survive, the share of people in the elderly category rises, even if the absolute number of elderly people changes slowly.

This process is called population ageing and can increase the demand for healthcare, pensions, and support services. It does not make the death rate zero, nor does it create very high natural increase. Population cannot double every year merely because births are low. Therefore option B is correct: the proportion of the elderly population may increase when a very low birth rate continues for a long time.

Related tags

Low Birth RatePopulation AgeingAge StructureSlow GrowthPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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