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An increase in life expectancy can raise the share of which group in the age structure?

Answer and explanation

Correct answer: Elderly population

Life expectancy is the average number of years a person is expected to live under the mortality conditions of a population. When it increases, more people survive into older ages. If births are not increasing rapidly at the same time, older people can form a larger share of the total population. This change is often associated with population ageing, although the final age structure also depends on fertility and migration.

Option A is correct because it identifies the elderly population. Higher life expectancy does not specifically increase only newborns, school children, or migrant workers. It may improve survival at several ages, but its clearest age-structure effect is a possible rise in the number and proportion of older persons. Thus the wording “can raise” is appropriate rather than claiming that ageing is guaranteed in every population.

Related tags

Life ExpectancyElderly PopulationPopulation AgeingAge StructurePopulation CompositionGeographyClass 12 McqRdgdfgdfg

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