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A country's total growth rate is positive while its natural increase is negative. What can be said about net migration?

Answer and explanation

Correct answer: It is positive and larger than the natural decrease

Total growth equals natural increase plus net migration. If natural increase is negative, births are fewer than deaths and it reduces the population. If total growth is nevertheless positive, net migration must be positive enough to overcome that natural decrease. Therefore net migration is positive and larger in magnitude than the natural decrease, as stated in option A.

For example, if natural increase is −0.5 percent and net migration is +0.8 percent, total growth is +0.3 percent. The exact migration rate cannot be calculated without numerical rates, but its direction and minimum relative size are clear. A negative or zero migration rate would make total growth negative, not positive. Hence option A is the only valid conclusion.

Related tags

Positive MigrationNatural DecreaseTotal GrowthMigration Driven PopulationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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