smog was an issue that got so bad that in the 1950 and 1960 people died from breathing it. ( London England )
To reduce smog the American government brought in anti pollution regulations.
Some of the most significant and noticeable govern the pollution output of automobiles.
Great Smog happened in 1952.
no you cat clean it sorry
Smog affects buildings in a great number of ways. These buildings could be polluted and dirty just due to the smog.
Smoke and fog
vehicles make up smog and ground level ozone. They are pollutants.
Yes it can be cleaned up.
washed up or cleaned up washed up or cleaned up
Classic smog is made of smoke, sulfur dioxide and fog Photochemical smog is made of reactive hydrocarbons, PAHs, nitrogen oxides, ozone
Soot,oxygen,and mold
A river is cleaned up naturally by digestion.
He cleaned his room. I cleaned up the mess I made.
clean up everything is correct. or you could use everything was cleaned up. It would depend "clean up every thing" is an instruction to do something in the future where "every thing cleaned up" as in "is every thing cleaned up ?" is a question and used in "every thing is cleaned up" is a statement so both phrases are correct used in their proper context.