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By which process can a region's population increase even without births?

Answer and explanation

Correct answer: In-migration

Correct answer: B, in-migration. In-migration occurs when people enter a region from another region or country. These newcomers are added to the population of the receiving area, so its population can rise even if no births occur during the period being considered. A simple way to think about population change is: starting population plus births and in-migration, minus deaths and out-migration. Option B is correct because people coming in increase the local count. Option A is wrong because out-migration means residents leave, which tends to reduce the population. Option C is wrong because deaths remove people from the population rather than add them. Option D is wrong because a change in physical area is not itself a process that adds people. The question asks about movement into the region, not natural increase. Memory cue: in means in, so in-migration brings people in.

Related tags

In-MigrationPopulation IncreaseMigrationPopulation ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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