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Which option gives correct density understanding from area and population comparison?

Answer and explanation

Correct answer: Smaller area and higher population can produce higher density

The direct answer is A: a smaller area and higher population can produce higher density. The formula is \(\text{Density}=\frac{\text{Population}}{\text{Area}}\). Density is not decided by population alone. Step by step: compare the total number of people, compare the land areas, divide each population by its area, and then compare the results. If many people live in a small area, the number of people per square kilometre can be high. Option A is correct because both parts of the formula point toward a larger density. Option B is wrong because a large area may lower density if the population is spread out; “always” makes the statement false. Option C is wrong because a name or label has no mathematical role in density. Option D is wrong because area is the denominator and directly affects the answer. For example, 10,000 people in 10 square kilometres gives \(1,000\) people per square kilometre, while the same population in 100 square kilometres gives \(100\) per square kilometre. Memory cue: more people plus less land usually means higher density.

Related tags

AreaPopulationDensity Comparison

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