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If the birth rate is 10 per thousand and the death rate is 10 per thousand, what is the natural increase rate?

Answer and explanation

Correct answer: Zero

Natural increase measures the change caused only by births and deaths. It is calculated by subtracting the death rate from the birth rate. Migration is not included in this calculation, because migration affects net migration rather than natural increase.

Here the birth rate is 10 per thousand and the death rate is also 10 per thousand. Thus natural increase is \(10-10=0\) per thousand. Births replace the number of deaths, so there is no net population increase from these two processes. Therefore option C, zero, is correct. This does not necessarily mean that total population cannot change through migration.

Related tags

Birth Death EqualityZero Natural GrowthPopulation RateDemographyPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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