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In which situation can births and in-migration together bring rapid growth?

Answer and explanation

Correct answer: When both are high and deaths and out-migration are low

Answer: A. Births and in-migration are processes that add people to a population. If both are high, many people are added through natural increase and through movement into the area. For growth to be rapid, the processes that remove people should not cancel these additions; therefore deaths and out-migration should be low. In symbols, total change is (births − deaths) + (in-migration − out-migration). High births and high in-migration make the positive terms large, while low deaths and low out-migration keep the negative terms small. Option A includes all these conditions. Option B would reduce population because deaths and departures are high. Option C removes one important source of addition, so it cannot describe the strongest combined growth. Option D removes births, another major source of increase. The word “together” is important: the question asks about the combined effect of two adding processes, not just one. Memory cue: additions high plus removals low equals rapid growth.

Related tags

Birth RateIn-MigrationRapid Population GrowthProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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