because we breathe in the oxygen which is flowing around this earth and when we breathe in this oxygen around us ,we also breathe in air pollution which is not good for all things living on this planet.
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I tell you. It is very simple. Air pollution. only STUPID people do not know the answer. Then come and ASK the question.
"water pollution and sanitation" "land pollution" "air pollution" "noise and sounds level in community" "oil pollution" "radiation"
SMOG
used to create negative pressure in a room when clearing air for asbestos removal and other harmful particulates
The pollution washes out of the air. Things grow.