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Why is the growth rate written as a percentage?

Answer and explanation

Correct answer: To make comparison between different areas easier

The direct answer is D: a percentage makes comparison between different areas easier. A growth rate compares the change with the starting population. For example, an increase of 10,000 people may be large for a small town but small for a very large city. Expressing the change as a percentage puts both areas on a common basis. Option A is wrong because mountain height is measured using units such as metres, not population growth percentage. Option B is wrong because river direction is unrelated to population rate. Option C is wrong because writing a rate as a percentage does not stop births; it only describes change. Option D is correct because percentages allow fairer comparison between populations of different sizes. Memory cue: percentage means ‘out of 100’, so it helps compare unlike-sized groups.

Related tags

Growth RatePercentageComparison Of PopulationsPopulation GrowthPopulationGeographyClass 9 Mcq

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