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In which situation will the role of death rate in population change be clearer?

Answer and explanation

Correct answer: When health services are weak and deaths are high

Direct answer: A—when health services are weak and deaths are high. Population change is influenced by births, deaths and migration. The death rate tells us how many people die in relation to the population during a given period. If medical care, sanitation, nutrition and disease control are poor, deaths may rise. Step by step, a high death rate removes more people from the existing population; if births and migration do not fully compensate for this loss, natural increase becomes small or even negative. Therefore, the effect of death rate becomes easy to observe. A is correct because it directly describes a condition in which deaths strongly affect population size. B is wrong because ignoring births does not explain the role of deaths. C is wrong because migration is movement of people, not area. D is wrong because a language change does not itself add or remove people. Memory cue: births add, deaths subtract, and migration may add or subtract.

Related tags

Death RateHealth ServicesPopulation ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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