/u/rr27680's posts
Man has domesticated dogs and other animals for thousands of years while some species have remained forever wild. What is that ‘element’ in animals that governs which species can be domesticated and which can’t?
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When an object is burnt completely what happens to all the atoms, electrons and protons that are there in it?
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How were the distances between earth and other planets / heavenly bodies measured accurately for the first time?
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