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What is the effect of out-migration on population change?

Answer and explanation

Correct answer: It decreases the population of that area

Direct answer: Option D, it decreases the population of the area people leave. Out-migration means that residents move out of a particular area to live elsewhere. The reasoning is simple: they were included in the original area’s population; they leave; they are no longer counted as residents there. Thus the original area loses population through out-migration, assuming other additions do not offset the loss. Option A is wrong because leaving an area does not automatically increase its birth rate; birth rate is a separate vital measure. Option B is the opposite of the usual effect on the area of departure and would describe in-migration more closely. Option C is wrong because out-migration does not remove the possibility or measurement of deaths. The destination area may gain those migrants, so the effect depends on which area is being discussed. Memory cue: out = people go out, so the departure area’s population goes down.

Related tags

Out-MigrationPopulation ChangePopulation DecreaseProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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