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Which group is correct while studying population growth?

Answer and explanation

Correct answer: Birth rate, death rate and migration

Correct answer: A. Population growth is studied by examining how the number of people changes over time. The principal demographic components are birth rate, death rate, and migration. Births add to population, deaths reduce it, and migration can add or remove people from a particular area. B contains physical and climatic features, which may influence settlement but are not the basic group used to calculate population change. C lists physical features and wildlife, not demographic measures. D lists objects or activities that do not form the standard components of population growth. A useful memory cue is B-D-M: births, deaths, and movement (migration). Do not confuse factors that may influence where people live with the processes that directly change population size.

Related tags

Birth RateDeath RateMigrationPopulation GrowthPopulationGeographyClass 9 Mcq

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