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Large numbers of young adults migrate out of a district. Besides total population change, what additional change is likely?

Answer and explanation

Correct answer: The age structure may become older

Migration is selective when particular age groups move more than others. If many young adults leave a district, the district loses a large share of people in working and reproductive ages. Even if people of other ages remain, the age composition changes. The proportion of older residents can consequently become larger among those left behind.

Therefore, option A is the most likely additional change: the age structure may become older. This does not mean every resident becomes older or that ageing is certain in every case; it means the average composition may shift toward older age groups. The other options are not logical consequences. Birth rates do not always double, land area does not shrink because of migration, and deaths cannot stop completely.

Related tags

Youth Out MigrationAgeingAge StructurePopulation DeclinePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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