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Decadal population growth shows growth over which period?

Answer and explanation

Correct answer: Ten years

Direct answer: A, ten years. The word “decadal” comes from “decade,” and a decade means a period of ten years. Decadal population growth therefore compares the population at one point with the population ten years later, or measures the change during a ten-year period. For example, a census may compare the population recorded in one census year with that recorded in the next census after ten years. B is wrong because five years is a half-decade. C is wrong because twenty years covers two decades. D is wrong because fifty years covers five decades. Memory cue: decade = ten, so decadal growth = ten-year growth.

Related tags

Population GrowthDecadal GrowthDemographyCensusPopulationGeographyClass 9 Mcq

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