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A city's total population grows by 35 percent while the 0 to 14 age group grows by only 1 percent. What is the strongest conclusion?

Answer and explanation

Correct answer: Much of the growth came from migration of other age groups

The key idea is to compare the growth of the whole population with the growth of children aged 0–14. The city grew by 35%, but its child population grew by only 1%. This means that children account for very little of the increase. The strongest reasonable interpretation is that many people in other age groups, especially young adults or working-age people, moved into the city. Such migration may be connected with jobs, education, housing, or services. The figures do not prove the exact cause, but they make this explanation more plausible than the alternatives.

Option A follows because in-migration of other age groups can raise total population without producing a similar rise in the child group. Option B is too certain: the data do not show that the birth rate rose by 35%. Option C contradicts the given 1% growth of children, and option D is unjustified because the two figures can occur together. Therefore, A is the strongest conclusion.

Related tags

Urban MigrationAge Group GrowthWorking Age MigrantsPopulation StructurePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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