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If high density exists with poor drainage in an area what will be the most serious urban risk?

Answer and explanation

Correct answer: Waterlogging, health risks and pressure on services

Correct answer: A — waterlogging, health risks and pressure on services. Population density means the number of people living in a unit of area. When many people live close together, roads, drains, hospitals, toilets and waste-disposal systems must serve a large population. Poor drainage means rainwater and wastewater cannot flow away properly. Water may collect on roads and near houses, damaging property and making movement difficult. Stagnant or dirty water can also increase health risks, while overcrowded services may respond slowly. Option B is wrong because drainage does not change the physical area suddenly. Option C is wrong because poor drainage does not automatically reduce population. Option D is wrong because density can still be calculated using population and area. Memory cue: high density plus weak drainage means more people exposed to the same water problem, so the pressure on health and services rises.

Related tags

Population DensityPoor DrainageUrban RiskWaterloggingPopulationGeographyClass 9 Mcq

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