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If the 5 to 14 age groups in a population pyramid are much larger than the 0 to 4 group, which recent demographic change is likely?

Answer and explanation

Correct answer: A recent decline in fertility

A population pyramid records the relative size of different age cohorts. The 0–4 group represents births during the most recent five-year period, while the 5–14 groups represent children born earlier. If the older child cohorts are much larger than the youngest cohort, fewer children have been born recently than in preceding years. A recent decline in fertility is therefore the most direct explanation. A sharp rise in fertility would enlarge the 0–4 group, not make it smaller. Elderly growth is unrelated to this immediate contrast, and young-adult migration cannot be described as the only possible cause. Thus, A is correct.

Related tags

Population PyramidRecent Fertility DeclineChild CohortsAge StructurePopulation CompositionGeographyClass 12 Mcq

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