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Why is it useful to classify fine solid particles in the atmosphere into natural and human sources?

Answer and explanation

Correct answer: Because it helps distinguish effects of dust, sea salt, smoke and industrial pollution

Answer: A. Fine solid particles suspended in air are often called aerosols or particulate matter. Their sources can be natural, such as wind-blown dust, sea salt, volcanic material, or biological particles, or human-made, such as smoke from fuel burning, construction dust, and industrial emissions. Separating the sources helps scientists identify what is causing poor air quality and decide which control measures are appropriate. It also helps compare their different effects on visibility, breathing, clouds, and radiation. B is wrong because particles have many sources. C is wrong because human activities release large amounts of particles. D is wrong because natural particles can influence the atmosphere. Memory cue: “Find the source before judging the solution.”

Related tags

AerosolsSolid ParticlesNatural SourcesHuman SourcesAir PollutionAccounting PrinciplesTheory Base Of AccountingAccountancy

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