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If both the birth rate and death rate are declining, what should be checked before concluding the amount of natural increase?

Answer and explanation

Correct answer: The gap between the two rates

The direct answer is option A: check the gap between the birth rate and the death rate. Natural increase is not decided by whether one rate is rising or falling in isolation. It is calculated by subtracting the death rate from the birth rate. For example, if the birth rate is 25 and the death rate is 10, the natural increase is 15 rate units; if the birth rate is 12 and the death rate is 8, it is 4. Thus both rates may decline while natural increase remains positive, becomes smaller, or in another case becomes negative if deaths exceed births. Option B is not a measurement. Option C concerns density rather than natural increase. Option D concerns migration, which is separate from natural increase. Memory cue: natural increase depends on birth rate minus death rate, not on one rate alone.

Related tags

Birth RateDeath RateNatural IncreaseProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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