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What limitation remains if only birth rate is seen in studying population growth?

Answer and explanation

Correct answer: The effects of death and migration are missed

Direct answer: A, the effects of death and migration are missed. Birth rate tells us about births in relation to population, but total population growth depends on more than births. Deaths reduce the population, while in-migration increases it and out-migration reduces it. A place can have a high birth rate but little total growth if deaths and out-migration are also high. Conversely, a place with a lower birth rate can still grow because many people move into it. B only repeats that one indicator is being observed; it does not solve the limitation. C is false because one measure cannot capture all components. D is unrelated: area does not get added by looking at birth rate. To understand growth, examine births, deaths, and migration together. Memory cue: never infer the whole population story from one vital rate.

Related tags

Birth RateDeath RateMigrationPopulation GrowthPopulationGeographyClass 9 Mcq

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