Question and answer
Which of these is a source for particulate matter in the air? A. automobiles B. dust C. fires D. all of the above
ALL OF THE ABOVE. Automobiles, dust and fires are sources for particulate matter in the air.
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selymi|Points 21593|
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Asked 11/16/2015 10:45:53 AM
Updated 12/28/2015 5:02:56 AM
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Edited by selymi [12/28/2015 5:02:48 AM], Confirmed by selymi [12/28/2015 5:02:56 AM]
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