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Which component is not included in natural population increase?

Answer and explanation

Correct answer: Migration

Natural population increase measures the change produced by births and deaths within a population. It is calculated as births minus deaths, often expressed for a specified period. If births are greater than deaths, the natural increase is positive; if deaths are greater, it is negative. This measure does not include people entering or leaving through migration, because migration changes population size through movement rather than through vital events.

Option C is therefore correct: migration is not a component of natural increase. Option D describes the calculation itself, while options A and B are the two vital events used in it. Total population change can include both natural increase and net migration, but those are separate components. Confusing migration with natural increase would make it impossible to distinguish demographic change caused by births and deaths from change caused by movement.

Related tags

Natural IncreaseMigrationBirth Death DifferencePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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