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If the birth rate decreases and the death rate also decreases, what should be checked to understand growth?

Answer and explanation

Correct answer: The difference between the two rates

Direct answer: Option B is correct. To understand natural population growth, we must compare the birth rate with the death rate rather than examine only one of them. In a simplified form, natural growth rate is related to birth rate minus death rate. If both rates decline by the same amount, their difference may remain unchanged. If the death rate falls more than the birth rate, the difference can become larger and growth may rise. If the birth rate falls more sharply, the difference can become smaller and growth may slow. Migration may also affect total population change, so it should be considered when the question asks about total growth. Option A is unrelated to the rate difference. C and D do not measure demographic growth. Memory cue: compare the two rates, not just their direction of change.

Related tags

Birth RateDeath RateNatural GrowthDemographyPopulation GrowthPopulationGeographyClass 9 Mcq

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