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How can migration affect population growth?

Answer and explanation

Correct answer: Number can change when people move in or out

Direct answer: A, the number can change when people move in or out. Migration is the movement of people from one place to another. When people enter an area, its population may increase; when people leave, its population may decrease. Thus, population growth in a particular area is affected not only by births and deaths but also by the balance between inward and outward migration. Option A is correct because it includes both directions of movement. Option B is wrong because migration does not directly change rainfall; rainfall is a climatic phenomenon. Option C is wrong because the arrival or departure of people clearly changes the number living in an area. Option D is wrong because mountains are physical landforms and are not created by human movement. Memory cue: in-migration adds people, out-migration removes people.

Related tags

MigrationPopulation ChangePopulation GrowthPopulationGeographyClass 9 Mcq

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