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A country has a total growth rate of 2 percent and a natural increase rate of 1.2 percent. What is the approximate net migration rate?

Answer and explanation

Correct answer: +0.8 percent

Total population growth is composed of natural increase and net migration. Natural increase accounts for births minus deaths, while net migration accounts for the balance between arrivals and departures. Therefore, when total growth and natural increase are known, net migration is found by subtraction.

Net migration rate = total growth rate − natural increase rate = \(2.0\%-1.2\%=+0.8\%\). The positive sign means immigration exceeds emigration by that rate, adding to the natural increase. Hence option B is correct. A negative value would mean that outward migration reduced population growth, but the given total rate is higher than the natural rate, so the migration contribution must be positive.

Related tags

Positive Net MigrationTotal GrowthNatural Increase RateMigration RatePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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