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If the share of children is low and the share of elderly people is high, which population-pyramid shape is more likely?

Answer and explanation

Correct answer: Narrow base and relatively broad upper part

A population pyramid shows the size of different age groups, usually with younger ages at the bottom and older ages at the top. When children make up a small share, the youngest age groups are relatively small, so the base becomes narrow. When elderly people form a large share, the upper part is relatively broad compared with that of a youthful population.

Therefore, the likely shape is a narrow base and a relatively broad upper section, making option B correct. This pattern is associated with an ageing population, often linked with lower fertility and longer survival. Option A describes a youthful population with many children and few older people. Options C and D do not correctly represent how age composition is shown in a population pyramid.

Related tags

Population PyramidNarrow BaseElderly ShareAgeingAge StructurePopulation CompositionGeographyClass 12 Mcq

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