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P. Vasudevan
's Polls
Up to approximately how much of the world’s oxygen is produced
Up to approximately how much of the world’s oxygen is produced by the ocean?
1)Up to 10%
0 votes (0%)
1)Up to 10%
2)Up to 30%
0 votes (0%)
2)Up to 30%
3)Up to 55%
1 vote (100%)
3)Up to 55%
4)Up to 85%
0 votes (0%)
4)Up to 85%
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