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If an area has a low birth rate but a very large reproductive-age group, what is possible?

Answer and explanation

Correct answer: The total number of births may still be high

The direct answer is A. A birth rate is a rate relative to the population or a specified group, while the total number of births is an actual count. If a very large number of people are in the reproductive-age group, even a low birth rate can produce many births in total. The calculation depends on both the rate and the size of the relevant population. B is wrong because a low rate is not the same as zero births. C is wrong because birth rate does not automatically determine death rate; deaths depend on other conditions. D is wrong because population change also includes deaths and migration, and a large reproductive-age group may continue adding births. This situation can also help explain population momentum: a large young population may keep births substantial for some time. Memory cue: low rate does not always mean low number.

Related tags

Birth RateReproductive-Age PopulationPopulation MomentumPopulation GrowthPopulationGeographyClass 9 Mcq

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