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In which situation will a city's population growth depend more on migration than on natural increase?

Answer and explanation

Correct answer: When the birth–death gap is small and in-migration is high

Answer: A. Natural increase is the difference between births and deaths. Migration changes population through people entering or leaving an area. If a city has only a small positive difference between births and deaths but receives many people from other places, the increase caused by in-migration is larger than the increase caused by natural change. For example, a city might gain 2,000 people from births exceeding deaths but receive 20,000 migrants; migration is then the dominant contributor to growth. A is correct because it gives both required conditions: a small natural increase and high in-migration. B is wrong because without in-migration, migration cannot be the main source of growth. C is wrong because deaths exceeding births and no migration would normally produce decline. D is wrong because an uninhabited city has no resident population to grow in the stated way. Memory cue: natural increase is births minus deaths; migration is movement in or out.

Related tags

Urban Population GrowthIn-MigrationNatural IncreasePopulation GrowthPopulationGeographyClass 9 Mcq

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