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Why are birth and death data useful in census?

Answer and explanation

Correct answer: They explain natural change in population

Direct answer: B. Birth and death records help us understand natural change in population. Births add people and deaths remove people, so comparing their numbers shows whether population is naturally increasing or decreasing. Census information helps planners study the size and characteristics of a population and prepare services, although the particular process asked here is natural change. A is wrong because river length is measured through geographical surveys, not birth and death data. C is wrong because mountain height is measured by surveying. D is wrong because weather is studied through atmospheric observations. Memory cue: for population change, remember the three main processes—births, deaths and migration; only births and deaths together describe natural change.

Related tags

CensusBirth DataDeath DataNatural ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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