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Which statement correctly explains population growth?

Answer and explanation

Correct answer: It is the combined effect of births, deaths and migration.

The correct answer is A: population growth means a change in the number of people living in a place, and it is explained by births, deaths and migration together. Begin with the basic idea: births add people, while deaths reduce the number of people. In-migration, or people entering an area, also increases its population; out-migration, or people leaving, decreases it. Thus, population change can be understood as births minus deaths, with migration also included when we study total change. A is correct because it includes all three processes. B is wrong because an increase in land area does not automatically add people. C is wrong because weather may influence living conditions but is not the definition of population growth. D is wrong because language distribution describes culture, not the numerical change in population. Memory cue: births and arrivals add; deaths and departures subtract.

Related tags

Population GrowthDemographic ProcessesMigrationPopulationGeographyClass 9 Mcq

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