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Why can a small numerical increase in a small base population show high percentage growth?

Answer and explanation

Correct answer: Because the base population is small

Correct answer: A. Percentage growth compares the increase with the starting, or base, population. The formula is percentage growth = (increase ÷ base population) × 100. When the base is small, even a modest numerical increase forms a large fraction of it. For example, an increase from 100 to 110 is only 10 people, but 10 ÷ 100 × 100 = 10%. An increase of 10 in a base of 1,000 is only 1%. Option B concerns area, not the percentage calculation. Option C is not required; births, deaths, and migration may all affect the change. Option D is false because migration can affect population growth.

Related tags

Base PopulationPercentage GrowthSmall PopulationPopulation GrowthPopulationGeographyClass 9 Mcq

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