Choose the most appropriate answer:Natural radioactivity was discovered by
Natural radioactivity was discovered by Henri Bacquerel.
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Optical fibre works on which of the following principle of light?
What was the real name of Gautam Buddha?
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Spring tides occur when ______.
Article 27 of the Indian Constitution "Freedom as to payment of taxes for promotion of any particular religion" deals with?
Find the odd one out.
Ferns belong to which division of plants?