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How does migration affect population growth?

Answer and explanation

Correct answer: Population changes when people come or leave

Direct answer: A. Migration means the movement of people from one place to another. When people enter an area, its population can increase; when people leave, its population can decrease. Thus migration changes population growth even though it does not change the natural increase, which is calculated from births and deaths. A is correct because it includes both directions of movement. B is wrong: migration is a human movement, not a process that changes only rainfall. C is wrong because migration does not form mountains. D is wrong because the physical area of a place does not become zero when people move. In-migration means entering, while out-migration means leaving. Memory cue: people in add to a place; people out subtract from it.

Related tags

MigrationIn-MigrationOut-MigrationPopulation GrowthPopulationGeographyClass 9 Mcq

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