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If population remains the same in an area but safe habitable area decreases due to floods, what will happen to real density pressure?

Answer and explanation

Correct answer: Real density pressure may increase

Correct answer: A, real density pressure may increase. The usual density formula divides population by area. If the total population stays constant but the safe, usable area becomes smaller, more people are effectively concentrated in the remaining habitable space. For example, the official density based on total administrative area may not change, but the pressure on homes, roads, shelters, water and services in the safe area can rise. A is correct because it distinguishes formal total-area density from practical pressure on usable land. B is wrong because reducing safe space does not automatically reduce pressure. C is wrong because population does not become zero and density is not automatically zero. D is wrong because the amount of usable area directly affects concentration. Memory cue: same people plus less safe space means more pressure on the remaining space.

Related tags

Habitable AreaFlood RiskDensity PressurePopulation DensityPopulationGeographyClass 9 Mcq

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