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If an area has high density and high air pollution, which analysis is correct?

Answer and explanation

Correct answer: The combined effects of density, transport and industry must be examined

Correct answer: A. High density means many people and activities are concentrated in a limited area. Such concentration may increase travel, traffic, fuel use, construction and demand for goods and services. Industries and transport can add emissions, while local conditions and pollution-control measures also influence air quality. Therefore, a sound analysis examines the combined effects of population density, transport, industry, energy use and management rather than blaming one factor automatically. B is incorrect because settlement patterns and urban activities can affect emissions and exposure. C is incorrect because high density does not automatically clean the air. D is incorrect because area alone cannot explain pollution; population and activities also matter. Memory cue: when an environmental question gives several linked factors, analyse their interaction instead of choosing a single-factor explanation.

Related tags

High DensityAir PollutionUrban FactorsPopulation DensityPopulationGeographyClass 9 Mcq

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