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kannudurai T N
's Polls
G K TODAY
Who discovered oxygen?
A. Lavoisier
0 votes (0%)
A. Lavoisier
B. Joseph Priestley
3 votes (100%)
B. Joseph Priestley
C. Dalton
0 votes (0%)
C. Dalton
D. Swinton
0 votes (0%)
D. Swinton
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