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Two countries both have zero growth, but one has high birth and death rates while the other has very low birth and death rates. Why are they demographically different?

Answer and explanation

Correct answer: Their age structures and demographic dynamics may differ

Zero population growth describes the final balance, not the size of births and deaths separately. A country can have many births and many deaths that nearly balance, or it can have very few births and very few deaths that also balance. These situations produce the same net growth but different demographic structures and population processes.

The high-birth, high-death country may have a younger population and a faster turnover of people. The low-birth, low-death country may have an older population and slower demographic change. Thus, equal zero growth does not make the countries identical. Their age structures, fertility, mortality, and population dynamics may differ, so option A is correct.

Related tags

Zero GrowthBirth Death RatesAge StructureDemographic DynamicsPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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