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If natural increase is negative yet population is increasing, which process may be dominant?

Answer and explanation

Correct answer: In-migration

The correct answer is B: strong in-migration can produce total population growth even when natural increase is negative. Negative natural increase means deaths are greater than births, so births minus deaths has a negative value. Total population change, however, is calculated as births minus deaths plus in-migration minus out-migration. For example, if natural increase is −100 but 250 people enter and only 20 leave, the total change is −100 + 250 − 20 = +130. The population therefore rises. A is wrong because out-migration removes people and would make growth less likely. C is wrong because deaths contribute to the negative natural increase rather than reversing it. D is wrong because a larger area does not itself create additional people; it may affect density, but not the population total. Memory cue: when births are fewer than deaths, look for a positive migration balance.

Related tags

Negative Natural IncreaseIn-MigrationTotal GrowthProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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