Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called_________________?
Correct answer: D. Aerosols
- A. Fumes
- B. Mists
- C. Smoke
- D. Aerosols
Explanation
Aerosols are very small solid or liquid particles suspended in a gas, often remaining airborne and travelling with wind. Fumes are typically fine solid particles formed by condensation, while smoke contains combustion products and is not defined solely by particle size.
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