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In which condition can the share of dependent population rise in a source area?

Answer and explanation

Correct answer: Mainly young workers move out

The direct answer is A. A dependent population generally includes people who are less likely to be in the working-age group, especially children and older people. Migration is often age-selective, meaning young adults may be more likely to leave a source area for jobs or education. Step by step, if many working-age people move out, the total population in the source area falls and the remaining children and elderly form a larger percentage of that smaller population. A is correct because it can increase the dependency share even if the actual number of dependants does not rise. B is wrong because the arrival of young workers would usually increase the working-age share and lower the relative dependency share. C is wrong because unchanged age groups do not create a new rise in the proportion of dependants. D is wrong because no migration alone does not change the age composition through migration. Memory cue: when workers leave, dependants become a larger share of those left behind.

Related tags

Out-MigrationDependency RatioAge-Selective MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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