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Why can absolute increase differ even if two areas have the same growth rate?

Answer and explanation

Correct answer: Because base population may be different

Answer: A. A growth rate is a percentage, while absolute increase is the actual number added. To calculate the numerical increase, multiply the rate by the base population. Suppose Area 1 has 10,000 people and Area 2 has 50,000 people, and both grow by 5%. Area 1 adds 500 people, while Area 2 adds 2,500 people. The percentage rate is identical, but the absolute increases differ because the starting populations differ. A is correct. B is wrong because the time period is necessary for interpreting a rate and comparing changes. C is wrong because equal birth rates are not guaranteed and birth rate alone does not define total growth. D is wrong because migration can affect actual population change. Memory cue: percentage compares relative change; absolute increase counts people.

Related tags

Absolute IncreaseGrowth RateBase PopulationPopulation GrowthPopulationGeographyClass 9 Mcq

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