A) fog
B) smog
C) aerosols
D) colloides
Correct Answer: C
Solution :
Aerosoles are suspended particulate matter with particles size of less than 1 urn. They are composed of fluorochlorocarbons and released by jet planes. Fog is thick cloud of minute water droplets suspended in the atmosphere at or near earth?s surface. Smog : These are combination of dust and smoke.
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