Particles in man-made smoke work as coagulation basis, so humidity in air can...

[Riehmann]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #573 "Weather Test (10)", question 4

A noticeable haze that is caused by a mixture of air pollutants and sunlight is called ..........

(a) sleet
(b) smog
(c) turbulence

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #573 "Weather Test (10)", answer 4

A noticeable haze that is caused by a mixture of air pollutants and sunlight is called smog.

Correct answer: (b) smog

Your answer was: correct
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I think that SMOG is a mixture of SMoke and fOG. Particles in man-made smoke work as coagulation basis, so humidity in air can easily form into fog... and we have smog. I don't think it has anything to do with sunlight... Am I wrong? Where did you find your definition? Thanks.

Riehmann

[Linda]

Hi Reihmann,
This is from just one smog-related website and many other websites will verify this as well. This is directly from this website: (the link is below).
"Smog usually is produced through a complex set of photochemical reactions involving volatile organic compounds (VOC's) and nitrogen oxides in the presence of sunlight that result in the production of ozone."
http://www.deq.louisiana.gov/portal/tabid/1991/Default.aspx
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