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Sudheer M.
's Polls
GK
Which one of the following gases is placed second in respect of abundance in the Earth's atmosphere?
Oxygen
1 vote (50%)
Oxygen
Hydrogen
1 vote (50%)
Hydrogen
Nitrogen
0 votes (0%)
Nitrogen
Carbon dioxide
0 votes (0%)
Carbon dioxide
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2 votes
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Wolmal
(256 symbols max)
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