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If the birth rate falls from 38 to 29 per thousand and the death rate falls from 14 to 11 per thousand, how does natural increase change?

Answer and explanation

Correct answer: From 24 to 18 per thousand

Natural increase is found by subtracting the death rate from the birth rate. Initially, it was \(38-14=24\) per thousand. After the change, it becomes \(29-11=18\) per thousand. Thus, natural increase falls by 6 per thousand. Both rates have declined, but the birth rate has fallen by 9 per thousand while the death rate has fallen by only 3 per thousand, so the difference becomes smaller. Migration is not included in this calculation.

Choice A is correct: natural increase changes from 24 to 18 per thousand. Choice B would be correct only if the new death rate were 8 rather than 11, so it does not match the given figures. Choice C adds the two rates instead of finding their difference, and choice D merely repeats the old and new death rates. The calculation concerns births minus deaths, not either rate separately.

Related tags

Birth Death GapNatural Increase DeclineDemographic RatesPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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