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Sudheer M.
's Polls
GK
Among the following fuels of energy, which is the most environment friendly?
Biogas
1 vote (50%)
Biogas
CNG
1 vote (50%)
CNG
Hydrogen
0 votes (0%)
Hydrogen
Ethanol
0 votes (0%)
Ethanol
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2 votes
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Wolmal
(256 symbols max)
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