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What caution is necessary while comparing decadal growth?

Answer and explanation

Correct answer: The time period should be the same

Correct answer: A. Decadal growth means population change measured over a ten-year period. For a fair comparison, the time intervals must be comparable—for example, one complete decade should be compared with another complete decade. If one figure covers ten years and another covers only five years, their growth cannot be compared directly without adjustment. Option B is not the basic requirement for calculating or comparing decadal growth. Option C relates to drainage, not population measurement. Option D is a cultural characteristic and is not the time basis of growth. Also check whether the same definition, area and population base are being used. Memory cue: ‘decadal’ means decade, so first check the ten-year period.

Related tags

Decadal GrowthTime PeriodPopulation ComparisonPopulation GrowthPopulationGeographyClass 9 Mcq

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