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Which option correctly states the combined effect of birth rate and death rate?

Answer and explanation

Correct answer: Natural increase can be high when birth rate is high and death rate is low

Direct answer: A. Natural increase is understood by comparing the birth rate with the death rate; in simple form, natural increase equals birth rate minus death rate. If births are numerous and deaths are few, the difference can be large and natural increase can be high. A is correct because it describes this relationship accurately. B is wrong because high births and low deaths generally add people rather than make the population decline, although migration could affect total population separately. C is wrong because deaths directly reduce natural increase. D is wrong because birth rate describes the frequency of births in a population, not the area of land. Migration is not part of natural increase. Memory cue: births add, deaths subtract.

Related tags

Birth RateDeath RateNatural IncreasePopulation ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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