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If births are 900 and deaths are 500, what will the natural increase be?

Answer and explanation

Correct answer: 400

Direct answer: A, 400, is correct. Natural increase is calculated by subtracting deaths from births: 900 − 500 = 400. The result is a positive increase because births are greater than deaths. A is correct because it gives the difference between the two population events. B is wrong because 500 is only the number of deaths. C is wrong because 900 is only the number of births. D is wrong because 1400 is the sum of births and deaths, but natural increase is a difference, not a total. Migration is not mentioned, so it must not be added or subtracted. Also, when actual counts are given, the answer is a number of people or events; when rates are given, the units would be rates. Memory cue: natural increase = births − deaths.

Related tags

Natural IncreaseBirthsDeathsCalculationPopulation Size And DistributionPopulationGeographyClass 9 Mcq

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