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If the birth rate is 12 per thousand, the death rate is 7 per thousand, and net migration is -3 per thousand, what will be the total growth rate?

Answer and explanation

Correct answer: 2 per thousand

Correct answer: B, 2 per thousand. First calculate the rate of natural increase: birth rate - death rate = 12 - 7 = 5 per thousand. Then include net migration: total growth rate = 5 + (-3) = 2 per thousand. Thus the population still grows, but only by two persons per thousand people during the stated period. Option A is wrong because it stops after calculating natural increase and ignores migration. Option C incorrectly uses the magnitude of migration as the final answer. Option D adds the rates instead of subtracting deaths and the negative migration. The unit remains “per thousand” throughout the calculation. Memory cue: total rate = birth rate - death rate + net migration rate; a negative migration rate reduces growth.

Related tags

Growth RatePer ThousandNet MigrationPopulation GrowthPopulationGeographyClass 9 Mcq

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