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A city has natural change of -9000 and net migration of +9000. Even though total population is stable, which change is possible?

Answer and explanation

Correct answer: Age and social composition can change

Total population change can be written as natural change plus net migration. Here the natural change is \(-9000\), while net migration is \(+9000\). Their sum is \(-9000+9000=0\), so the total number of residents remains stable. However, a stable total does not mean that the same individuals or the same population structure remain.

Deaths may be concentrated among older residents, while incoming migrants may mostly be younger adults. As a result, the city can experience changes in age composition, social characteristics, skills, or cultural composition even though the headcount is unchanged. Therefore, option A is correct. The other choices either claim an impossible consequence or confuse stable total population with unchanged structure.

Related tags

Stable PopulationAge StructureNet MigrationNatural DecreasePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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