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Why are birth, death and migration studied together while understanding processes of population change?

Answer and explanation

Correct answer: Because all three change population number

The direct answer is A. Population change means a change in the number of people in a place. Births increase that number because a new person is added. Deaths decrease it because a person is removed from the living population. Migration changes the number in a particular place: in-migration adds people and out-migration removes them, even though the total population of a larger region may be redistributed rather than simply created or destroyed. Option A is correct because all three processes can alter population size. Option B is wrong because these processes do not describe changes in weather. Option C is wrong because area is measured in units such as square kilometres, not by births, deaths, or migration. Option D is wrong because soil texture is a physical characteristic studied separately. Memory cue: ask, “What adds, removes, or moves people?”

Related tags

Population ChangeBirths And DeathsMigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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