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What does the population growth rate generally express?

Answer and explanation

Correct answer: Proportion of population change over a period

Population growth rate expresses the change in population relative to the population at the beginning of a specified period. It may show an increase or a decrease and is commonly written as a percentage. A simple form is \(\frac{\text{new population}-\text{initial population}}{\text{initial population}}\times100\). The time period must be stated or understood for the rate to have meaning.

Option B is correct because it describes the proportion of population change over a period. Total area is a geographical measurement, not a growth rate. The number of males and the number of rural residents are population counts or classifications, not the overall rate of change. Growth may result from births, deaths, and migration, depending on the definition being used, so the rate should not automatically be confused with only the birth rate. The key idea is change compared with the starting population.

Related tags

Growth RatePopulation PercentagePopulation ChangeDemographyPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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