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What is the most basic point to remember in processes of population change?

Answer and explanation

Correct answer: Birth, death and migration together change population

Direct answer: Option A. Population change is mainly understood through three demographic processes: births, deaths and migration. Births add new people. Deaths reduce the number of people. Migration changes the distribution and size of population when people enter or leave an area. More precisely, natural change is related to births and deaths, while migration balance is related to people moving in and out. Option A is correct because it includes all three basic processes. Option B is wrong: weather may influence living conditions, but it is not by itself the standard process used to measure population change. Option C is wrong: mountains can affect where people settle, but mountains do not directly represent births, deaths or movement. Option D is wrong: soil may influence agriculture or settlement, but it is not a demographic process. Memory cue: population changes through life events and movement, not through one physical feature alone.

Related tags

Birth Death MigrationBasic ConceptPopulation ProcessesProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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