posted by anonymous .
What is smog? What is the biggest source of smog today?
I know smog is a type of air pollution, but I am not aware of the biggest source of smog. Anything to help with that part of the question, would be great
Since this is not my area of expertise, I searched Google under the key words "smog" to get these possible sources:
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.