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Which option correctly explains population growth?

Answer and explanation

Correct answer: It is change in population number over time

Direct answer: Option C. Population growth means the change in the number of people in a population over a particular period. The change may be positive, negative or zero. Births and in-migration add people, while deaths and out-migration remove people. Thus, growth is a broad result of several demographic processes, not just one rate. Option A is wrong because birth rate measures births in relation to a population, but it does not by itself describe the whole change in population. Option B is wrong because death rate measures deaths, not total population growth. Option C is correct because it gives the basic meaning: population number changes over time. Option D is wrong because area is a physical measure of land and is used, for example, in density calculations, not as the definition of growth. Memory cue: growth asks, “How has the number of people changed with time?”

Related tags

Population GrowthDefinitionDemographyPopulation ChangePopulationGeographyClass 9 Mcq

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