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P. Vasudevan
's Polls
Who invented Gunpowder?
Who invented Gunpowder?
A. G. Ferdinand Von Zeppelin
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A. G. Ferdinand Von Zeppelin
B. Sir Frank Whittle
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B. Sir Frank Whittle
C. Roger Bacon
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C. Roger Bacon
D. Leo H Baekeland
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D. Leo H Baekeland
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