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In which situation can deaths and out-migration together cause rapid decline?

Answer and explanation

Correct answer: When both are high and births and in-migration are low

Answer: A. Deaths and out-migration remove people from an area. If both are high, the population loses people through natural decrease and through movement to other places. A rapid decline occurs when the processes adding people—births and in-migration—are low, because they cannot compensate for the losses. The formula makes this clear: total change = (births − deaths) + (in-migration − out-migration). High deaths and high out-migration create large negative terms, while low births and low in-migration create only small positive terms. Option A gives the complete condition. Option B would normally support population growth, not decline. Option C removes one of the reducing processes and therefore cannot describe the strongest decline. Option D similarly removes the effect of out-migration. Remember that a population may decline even if some births occur, provided deaths and departures are greater than the additions.

Related tags

Population DeclineDeathsOut-MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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