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In which situation can population momentum appear in population change?

Answer and explanation

Correct answer: When birth rate falls but growth continues due to a large young population

The correct answer is A. Population momentum occurs when a large proportion of people are young and entering or moving through the child-bearing ages. Even after the birth rate begins to fall, this large young group can produce many births, so total population may continue to grow for some time. A is correct because it combines a falling birth rate with a youthful age structure. B would produce no natural increase if births and deaths are both zero. C removes the main condition that creates momentum. D suggests that people leaving exceed births, which would tend to reduce population rather than sustain growth. Memory cue: momentum is growth carried forward by the age structure created in the past.

Related tags

Population MomentumYoung Age StructureBirth RateProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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