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If births and deaths are equal, what will natural increase be?

Answer and explanation

Correct answer: Zero

The direct answer is B: natural increase will be zero when births and deaths are equal. Use the relation natural increase = births − deaths. If 400 births and 400 deaths occur, the calculation is 400 − 400 = 0. Births add exactly as many people as deaths remove, so there is no net natural gain or loss. Option A is wrong because positive natural increase requires births to be greater than deaths. Option B is correct because equal quantities cancel each other. Option C is wrong because equality does not indicate rapid growth; it indicates no natural increase. Option D is wrong because nothing in the condition says that the population has doubled. Migration can still change the total population even when natural increase is zero, but migration is not part of the stated calculation. Memory cue: equal in and out through births and deaths gives a balance of zero.

Related tags

Zero Natural IncreaseBirths And DeathsPopulation BalanceDemographyProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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