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saravanakumar
's Polls
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Which scientist discovered the radio active element radium?
Thomas alwa edison
2 votes (33%)
Thomas alwa edison
Lewis edisson waterman
1 vote (16%)
Lewis edisson waterman
Marie curie
3 votes (50%)
Marie curie
Sir frank whittle
0 votes (0%)
Sir frank whittle
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6 votes
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Wolmal
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