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Sudheer M.
's Polls
GK
Which of the following pollutant gases is not produced both naturally and as a result of industrial activity ?
Nitrous oxide
2 votes (100%)
Nitrous oxide
Methane
0 votes (0%)
Methane
Carbon dioxide
0 votes (0%)
Carbon dioxide
Chlorofluoro carbons
0 votes (0%)
Chlorofluoro carbons
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2 votes
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Wolmal
(256 symbols max)
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