Question

paachan ek rasayanik parivartan hai ya bhautik parivartan hai​

Answer 1

Explanation:

chemical change

rasaynik parivartan

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Answer 2

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Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws. 

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