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Which relation for natural increase is correct?

Answer and explanation

Correct answer: Natural increase = Births − Deaths

The direct answer is A: natural increase = births minus deaths. The formula compares the number of people added through births with the number removed through deaths during the same period. For example, if there are 800 births and 500 deaths, natural increase is 800 − 500 = 300. If deaths are greater than births, the result is negative, indicating natural decrease. Option A is correct because it represents the demographic relationship. Option B combines physical features and has no role in calculating population change. Option C uses rainfall and temperature, which are environmental measurements, not the components of natural increase. Option D combines language and food without any demographic meaning. Migration is also not included in this particular formula; migration is considered separately when calculating overall population change. Memory cue: births add people, deaths subtract people, so write births first and deaths second.

Related tags

Natural IncreaseDemographic FormulaBirths And DeathsPopulation GrowthProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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