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In which situation would using percentage for population density be wrong?

Answer and explanation

Correct answer: When percentage is written instead of persons per square kilometre

Answer: A, when percentage is written instead of persons per square kilometre. Population density is calculated as population divided by area: Density = number of people ÷ land area. Its usual unit is persons per square kilometre, not a percentage. A percentage expresses a part out of one hundred and is useful for proportions, but it does not directly state how many people occupy a unit of land. B is correct practice because population and area are the two quantities needed for the calculation. C is not wrong because density is often used to compare regions, provided the same unit and suitable areas are used. D is not wrong because clearly stating the unit helps readers interpret the value. A common confusion is to treat every numerical comparison as a percentage; density is an absolute spatial measure unless a separate percentage is specifically being calculated.

Related tags

Density UnitPercentageErrorPopulation DensityPopulationGeographyClass 9 Mcq

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