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Population growth is affected by which two main natural components?

Answer and explanation

Correct answer: Births and deaths

Direct answer: Option A, births and deaths. Natural population growth means the change produced by births and deaths in a population, without including migration. To understand it step by step, births add people and deaths remove people. Therefore, natural increase can be expressed as births minus deaths. If births are greater than deaths, the population has positive natural growth; if deaths are greater, it may decline; and if both are equal, natural growth is zero. Option B is incorrect because mountains and plains are landforms, not demographic components. Option C is incorrect because rivers and lakes are water features. Option D is incorrect because trees and grass are vegetation. Memory cue: natural growth = new people by birth minus people lost through death; migration is a separate human factor.

Related tags

Natural GrowthBirthsDeathsPopulation ChangePopulation GrowthPopulationGeographyClass 9 Mcq

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