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Which option correctly gives the three components of population growth?

Answer and explanation

Correct answer: Births, deaths and migration

The direct answer is A: births, deaths, and migration. Population size changes when people are born, when people die, and when people move from one place to another. Births usually add people, deaths remove people, and migration can either add or remove people depending on whether more people enter or leave. More precisely, population change can be considered through natural change, which is births minus deaths, and net migration, which is in-migration minus out-migration. Option A contains all three relevant components. Option B lists social and dietary characteristics, not population-change processes. Option C lists physical features of the environment. Option D lists objects in space. Therefore, only A explains how population numbers change. Memory cue: population change = births − deaths + net migration.

Related tags

Population ComponentsBirths Deaths MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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