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Why is census important in the study of population growth?

Answer and explanation

Correct answer: It gives official population figures for different years

The direct answer is A: a census provides official population data for a particular time, and repeated censuses allow comparison across years. By comparing population totals, age groups, births, deaths or distribution where such data are collected, researchers and planners can study whether population is growing, stable or declining. This information helps plan schools, hospitals, housing, transport and other services. Option A is correct because census data provide a reliable population base for measuring change. Option B is wrong because weather observation is a different activity. Option C is wrong because a census records people and related demographic information; it does not alter rivers. Option D is wrong because recording population cannot change physical mountain height. Memory cue: census counts people; comparison of counts reveals growth.

Related tags

CensusOfficial DataPopulation GrowthDemographyPopulationGeographyClass 9 Mcq

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