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What can a relatively broad upper part of a population pyramid indicate?

Answer and explanation

Correct answer: A large share of elderly population

A population pyramid shows the size or proportion of people in different age groups. Its upper part represents older age groups. When that section is relatively broad, a comparatively large share of the population has reached old age. This may result from long life expectancy, low mortality at older ages, or sustained low fertility that makes older groups proportionally more prominent.

Option A is therefore correct: a broad upper part can indicate a large elderly population. It does not prove that migration alone caused the pattern, because migration may affect several age groups and needs separate evidence. A high birth rate would usually make the lower part wider, not the upper part. Zero life expectancy is impossible and contradicts the presence of older people.

Related tags

Population PyramidElderly ShareLife ExpectancyAgeingAge StructurePopulation CompositionGeographyClass 12 Mcq

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