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Which is the correct concept of natural increase?

Answer and explanation

Correct answer: Difference between births and deaths

The correct answer is A: natural increase is the difference between births and deaths. It is calculated as births minus deaths during a particular period. If births are greater than deaths, natural increase is positive; if deaths are greater, it is negative; if they are equal, it is zero. Migration is not included in natural increase, although it affects total population change. A is correct because it gives the proper demographic definition. B is wrong because immigration and emigration describe migration, not natural increase, and their net effect is considered as in-migration minus out-migration. C is wrong because area and density describe spatial relationships. D is wrong because rainfall and temperature are environmental elements, not the formula for natural increase. Memory cue: “natural” means births and deaths; movement belongs to migration.

Related tags

Natural IncreaseBirthsDeathsPopulation GrowthPopulationGeographyClass 9 Mcq

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