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Which are natural components in population growth?

Answer and explanation

Correct answer: Births and deaths

Direct answer: A, births and deaths. Population change has two broad parts: natural change and migration. Natural change is found by subtracting deaths from births during a given period. If births are greater than deaths, natural increase is positive; if deaths are greater, it is negative. Immigration means people entering an area, while emigration means people leaving it, so these belong to migration, not natural change. A is correct because births add people and deaths remove people through natural events. B is wrong because immigration and emigration are migration components. C describes measures or physical area, not population-change components. D describes environmental conditions, which may influence people but are not the natural components in this formula. Memory cue: natural change = births − deaths; migration is kept separate.

Related tags

Natural ComponentsBirthsDeathsPopulation GrowthPopulationGeographyClass 9 Mcq

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