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If a country's population pyramid has both a broad base and a broad middle but a very narrow top, which conclusion is appropriate?

Answer and explanation

Correct answer: Child and working-age groups are large but elderly share is small

In a population pyramid, the base represents children, the middle represents mainly working-age people, and the top represents older people. A broad base therefore indicates a large child population, while a broad middle indicates many people in working ages. A very narrow top indicates that the elderly form a relatively small share. Hence option A is the appropriate conclusion.

This pattern suggests substantial current or past fertility and a sizeable labour-force age group, but comparatively low survival into older ages or a younger overall population. It does not mean that every age group is equal, because the top is clearly much narrower. It also does not describe very low fertility with advanced ageing; those conditions usually produce a narrow base and a relatively wider upper section. The pyramid must be read from bottom to top.

Related tags

Population PyramidBroad BaseBroad MiddleLow Elderly ShareAge StructurePopulation CompositionGeographyClass 12 Mcq

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