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If births and deaths are equal in a country and there is no migration, what will happen to population size?

Answer and explanation

Correct answer: There will be almost no net change

Population size changes through natural change and migration. Natural change equals births minus deaths. In this case, births and deaths are equal, so natural change is zero. The question also says there is no migration, meaning neither people entering nor people leaving adds a further change.

Thus the total population has approximately no net change, so option C is correct. “Approximately” allows for ordinary recording or timing differences, but under the stated model the size remains constant. Rapid growth would require more births than deaths or net in-migration; rapid decline would require more deaths than births or net out-migration. Doubling has no basis in the information given.

Related tags

Zero Population GrowthBirth Death BalanceStable PopulationDemographyPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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