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In which situation can total population increase despite a low birth rate?

Answer and explanation

Correct answer: When the death rate is very low and in-migration is high

The direct answer is A. Total population change depends on more than births alone. A useful relationship is: population change equals births minus deaths plus in-migration minus out-migration. If the birth rate is low but the death rate is also very low, the difference between births and deaths may still be positive or may create little loss. In addition, high in-migration adds people from outside the area. Together, these conditions can make total population increase. A is correct because it combines a small or positive natural change with strong population addition through migration. B is wrong because high deaths and out-migration both reduce population. C is wrong because everyone leaving causes a decrease. D is wrong because high deaths and no arrivals do not support growth. Memory cue: never judge population change from birth rate alone; check deaths and both directions of migration.

Related tags

Low Birth RateIn MigrationDeath RatePopulation GrowthPopulationGeographyClass 9 Mcq

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