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If an area has five lakh births, two lakh deaths, four lakh emigrants and one lakh immigrants, what will be the total population change?

Answer and explanation

Correct answer: Zero change

The correct answer is A: zero change. Calculate the two parts separately. Natural increase equals births minus deaths: 5 lakh − 2 lakh = 3 lakh. Net migration equals immigrants minus emigrants: 1 lakh − 4 lakh = −3 lakh, because three lakh more people left than entered. Add the two components: 3 lakh + (−3 lakh) = 0. Therefore, the population has zero net change. Option A is correct. Option B counts only natural increase and ignores migration. Option C incorrectly adds all figures without giving departures a negative sign. Option D does not follow from the balance because the positive natural increase exactly offsets the net loss through migration. A useful method is: total change = births − deaths + immigrants − emigrants.

Related tags

Births And DeathsImmigration And EmigrationNet Population ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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