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Why is it incorrect to depend only on the birth rate while assessing population growth?

Answer and explanation

Correct answer: Because the death rate and migration also affect total population change

Direct answer: B is correct. Population change is not determined by births alone. Natural change is found by comparing births with deaths: natural increase equals births minus deaths. Net migration must then also be included: total change equals births minus deaths plus net migration. Thus, a high birth rate may be offset by many deaths or by people leaving the area. A is wrong because birth rates can change over time and from place to place. C is wrong because area can affect density, but it does not by itself determine population growth. D is wrong because births are important demographic events and are recorded through vital registration and demographic data, even though a census is conducted at intervals. Memory cue: “births minus deaths, plus migration.”

Related tags

Population GrowthBirth RateDeath RateMigrationPopulationGeographyClass 9 Mcq

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