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What is the main difference between natural increase and total population growth?

Answer and explanation

Correct answer: Natural increase is based on births and deaths while total growth can also include migration

Natural increase is the change produced by births and deaths within a population. It is calculated as births minus deaths, without including migration. Total population growth is broader: it combines natural increase with net migration, which is immigration minus emigration. Therefore, a place may grow even with low natural increase if it receives many migrants, or it may grow slowly if people move away.

Option B is correct because it identifies this difference. Option A is not always true, since migration can change total growth. Option C wrongly defines natural increase through migration, and option D incorrectly excludes births and deaths from total growth. In rate form, the relationship is total growth = natural increase + net migration. This distinction is essential when explaining population change.

Related tags

Natural IncreaseTotal GrowthMigrationBirth Death DifferencePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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