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Which is the correct meaning of decadal growth?

Answer and explanation

Correct answer: Growth of ten years

Answer: C, decadal growth means the increase in population over a period of ten years. The word “decadal” comes from “decade,” which means ten years. To find the absolute decadal growth, subtract the population at the beginning of the decade from the population at its end. If the starting population was 40 lakh and the ending population was 50 lakh, the absolute decadal growth was 10 lakh. A is wrong because one year is annual growth. B is wrong because five years is a five-year or quinquennial period, not a decade. D is wrong because fifty years covers five decades. Decadal growth may be reported as an absolute number or as a percentage, but the time interval remains ten years. Memory cue: decade and decadal both point to ten.

Related tags

Decadal GrowthTen YearsPopulation GrowthCensusPopulationGeographyClass 9 Mcq

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