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Why is it necessary to include migration in total population change?

Answer and explanation

Correct answer: Because people change numbers by entering or leaving a region

Answer: B. Migration means the movement of people from one place to another. When people enter a region, in-migration adds to that region’s population; when people leave, out-migration reduces it. Therefore, total population change cannot be understood only by counting births and deaths. A useful idea is: change in population depends on natural increase plus the balance of in-migration and out-migration. Option A is unrelated because migration does not mean a change in weather. Option C is false because migration does not make the birth rate zero. Option D is false because death rate measures deaths, whereas migration measures movement. Memory cue: births and in-migration add; deaths and out-migration subtract.

Related tags

MigrationTotal Population ChangeIn-MigrationOut-MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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