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Why can a decline in death rate accelerate population growth?

Answer and explanation

Correct answer: Because more people remain alive

The correct answer is A: more people remain alive when the death rate declines. Population growth is influenced by the balance between births and deaths, as well as migration. If the number of deaths falls while births continue, the difference between births and deaths becomes larger, producing a higher natural increase. Better survival may also mean that more children and adults remain in the population. B is wrong because a lower death rate does not stop births; births and deaths are separate demographic events. C is wrong because death-rate change does not necessarily stop in-migration. D is wrong because area is a measure of land, not a direct explanation of how many people survive. The effect is not automatic in every situation, since migration and birth rates also matter, but a fall in deaths can contribute to faster growth. Memory cue: fewer deaths with births continuing means a larger natural increase.

Related tags

Death RateSurvivalNatural IncreaseProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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