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If an area has very high density but weak sanitation, which risk will be greatest?

Answer and explanation

Correct answer: Public health risk

Correct answer: A, public health risk. Very high density means many people live in a relatively small area. If sanitation is weak, wastewater, solid waste and human waste may not be safely removed. Crowded living conditions can then make it easier for infections to spread, especially when clean water and hygiene facilities are also insufficient. This does not mean every dense area is unhealthy; good planning and sanitation can reduce the danger. B is incorrect because poor sanitation does not enlarge the physical area. C is unrelated to population density and sanitation. D is incorrect because weak sanitation does not make the population automatically disappear. The key chain is: high density plus weak sanitation can increase exposure and disease risk. Memory cue: density describes crowding, while sanitation describes safe waste and hygiene management; together they affect public health.

Related tags

High DensitySanitationPublic HealthPopulation DensityPopulationGeographyClass 9 Mcq

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