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If an area has eighteen births per thousand and twelve deaths per thousand, what is the natural increase rate?

Answer and explanation

Correct answer: Six per thousand

The correct answer is A: six per thousand. Natural increase means the change in population produced only by births and deaths; migration is not included. To calculate it, subtract the death rate from the birth rate: 18 births per thousand − 12 deaths per thousand = 6 per thousand. Option A is correct because it represents the balance left after deaths are deducted from births. Option B is only the death rate, so it does not show population increase. Option C is only the birth rate and ignores deaths. Option D adds births and deaths, but deaths reduce population rather than increase it. Memory cue: natural increase = birth rate − death rate. Do not confuse it with actual population growth, which may also include immigration and emigration.

Related tags

Natural Increase RateBirth RateDeath RatePopulation GrowthPopulationGeographyClass 9 Mcq

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