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What is the most important conclusion about the processes of population change?

Answer and explanation

Correct answer: Population changes through the additions and reductions caused by births, deaths and migration

Direct answer: A. Population change has three basic demographic components: births, deaths and migration. Births add people, deaths remove people, in-migration adds residents to an area, and out-migration removes residents from it. A useful framework is: total change = births − deaths + in-migration − out-migration. This explains why an area can grow because of natural increase or migration, and why it can decline when deaths or out-migration are greater. B is too narrow because weather is only one possible influence on living conditions and does not replace the demographic components. C is false because migration directly changes the population of both source and destination areas. D is false because birth and death rates vary across places and periods. Memory cue: add births and arrivals; subtract deaths and departures.

Related tags

Population ChangeBirth Death MigrationDemographic ProcessesProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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