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Boopathisankar Muthuraj
's Polls
Inventions in the world
What scientist discovered the radioactive element radium?
A. Isaac Newton
2 votes (50%)
A. Isaac Newton
B. Albert Einstein
0 votes (0%)
B. Albert Einstein
C. Benjamin Franklin
0 votes (0%)
C. Benjamin Franklin
D. Marie Curie
2 votes (50%)
D. Marie Curie
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