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A country's total population is increasing while the 15 to 64 age group is shrinking. Which situation can explain this apparent contradiction?

Answer and explanation

Correct answer: Children and elderly may be increasing or working-age adults may be emigrating

Total population is the sum of all age groups, not just the working-age group. Therefore, total population can rise even when the 15–64 group falls. This may happen if the numbers of children or elderly people increase, or if many working-age adults migrate out. Changes in age cohorts can also alter the size of a particular group.

Thus, option A gives a valid explanation. For example, a large inflow of children or older people could raise total population while emigration reduces the working-age group. The other choices are incorrect because total growth does not require every age group to grow, and the working-age group is a distinct part of total population.

Related tags

Working Age DeclineTotal Population GrowthAge StructureSelective MigrationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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