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What effect can out-migration have on the population of an area?

Answer and explanation

Correct answer: The population may decrease

The direct answer is A: out-migration may decrease the population of an area. Out-migration occurs when people leave their usual area to live or work elsewhere. Their departure removes people from the population of the area they leave. For example, if a village has 2,000 residents and 100 people move away, its population may fall to 1,900 if births, deaths and other movements are ignored. Option B is wrong because leaving reduces, rather than automatically increases, the local population. Option C is wrong because birth rate measures births in relation to population; it is not another name for migration. Option D is wrong because rainfall is a climatic condition and is not caused by people moving away. The final population can also be affected by births, deaths and in-migration, so “may decrease” is appropriately cautious. Memory cue: out means outward; people going out usually reduce the population left behind.

Related tags

Out-MigrationPopulation DecreaseMigrationPopulation ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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