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Which option gives the correct caution when interpreting population-growth data?

Answer and explanation

Correct answer: The base population and time period should be considered along with the percentage

Direct answer: A. A percentage is a relative measure, so it must be read with the base population and the time period. For example, a 20% increase over 1,000 people equals 200 people, while a 20% increase over 1,000,000 equals 200,000 people. The period also matters: a 10% increase in one year is different from 10% spread across ten years. Option A is correct because it asks us to examine the context behind the percentage. Option B is wrong because percentage alone may hide the actual number and speed of change. Option C is wrong because hiding the time period removes essential information. Option D is wrong because migration is a demographic process, not something that is automatically right or wrong. Memory cue: never read a growth rate without asking, 'From what base and over what time?'

Related tags

Data InterpretationPercentageBase PopulationPopulation GrowthPopulationGeographyClass 9 Mcq

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