Which of the following is/are a major contributor to the problem of acid deposition?

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    oxygen
    carbon dioxide
    sulfur dioxide
    nitrogen oxides
    Both the third and fourth answers are correct.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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Both the third and fourth answers are correct.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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