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Why can a national average hide local problems of population change?

Answer and explanation

Correct answer: Because regions may have different birth, death, and migration rates

Direct answer: A is correct. A national average combines the figures of many different places into one number. This number is useful for seeing the broad national pattern, but it may hide important local differences. For example, one state may have a high birth rate, another may have a low birth rate, and a third may gain many people through in-migration. These different values can balance one another when averaged. As a result, the national figure may look moderate even though a particular district is facing overcrowding, rapid population growth, ageing, or loss of workers. Option A is correct because birth, death, and migration rates vary from region to region. Option B is wrong because averages are useful for comparison, although they do not show the whole picture. Option C is wrong because regions are not identical in their population processes. Option D is wrong because people live in villages, towns, cities, and many regions, not only in the capital. Memory cue: national average gives the broad picture; local data reveals the uneven picture.

Related tags

National AverageRegional VariationPopulation ChangeProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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