Who invented Bakelite?
Answer: B
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In the 1700s,who would pay the postage fee for letters before the stamp was invented?
Answer: C
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Facebook was made in
Answer: A
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First pressure sensitive adhesive tape was invented in 1845 by
Answer: B
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The most important feature of the Indian Parliament is that:
Answer: B
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Vulcanized rubber was invented by
Answer: B
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Spinning frame was invented by
Answer: D
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Thermo Flask was invented by
Answer: C
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Railroad locomotive was invented by
Answer: A
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Revolver discovered by
Answer: C
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