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In which situation can total population increase despite zero natural increase?

Answer and explanation

Correct answer: In-migration is greater than out-migration

Direct answer: Option A—total population can rise when more people enter than leave, even if births equal deaths. Total population change has two components: natural increase and net migration. Natural increase equals births minus deaths; net migration equals in-migration minus out-migration. If births and deaths are equal, natural increase is zero. If 500 people enter and 300 leave, net migration is +200, so the total population increases by 200. Option A is therefore correct. Option B would make natural increase negative, not zero. Option C gives negative net migration, which reduces population. Option D makes both components zero, so there is no increase. Memory cue: zero natural increase does not mean zero total change; positive migration can still add people.

Related tags

Natural IncreaseNet MigrationTotal PopulationPopulation GrowthProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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