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If a city has a low birth rate but high immigration of students and workers, what will be the main source of growth?

Answer and explanation

Correct answer: Net migration

Correct answer: C, net migration. Population change comes from births, deaths, and migration. Natural increase is births minus deaths, so a low birth rate does not suggest that natural increase is the main source here. However, a large inflow of students and workers directly adds people to the city; when inward migration is greater than outward migration, net migration is positive and increases population. Option C is therefore correct. Option A is wrong because it refers to the balance of births and deaths, not the stated inflow. Option B is wrong because the death rate is not a source of population growth; deaths normally reduce population. Option D is wrong because sex ratio describes the balance between males and females and does not itself measure population increase. Memory cue: “in-migration” means people enter, so it raises population through net migration.

Related tags

Urban GrowthImmigrationNet MigrationPopulation GrowthPopulationGeographyClass 9 Mcq

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