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Which statement correctly explains the opposite effects of birth rate and death rate?

Answer and explanation

Correct answer: The birth rate adds people, while the death rate reduces the population

Correct answer: A. Births increase the number of people in a population, whereas deaths decrease it. This is why the two processes have opposite effects. Natural increase is understood by comparing births and deaths: when births are greater than deaths, the population has a positive natural increase; when deaths are greater, it has a negative natural change. B reverses the meanings of the two rates. C is wrong because migration means movement into or out of a place, while births and deaths are vital or natural processes. D is wrong because neither rate measures land area. A useful way to check the answer is to imagine a small village: a new baby adds one person, while a death removes one person. The rates measure the frequency of these events in a population, not the size of the land. Memory cue: birth adds; death subtracts.

Related tags

Birth RateDeath RateNatural IncreaseProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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