Question

(2) Wheat can be grounded into flour but flour cannot be turned into
wheat again. Grounding, of wheat into flour is what type of change
(3) Why is burning of paper an irreversible change!​

Answer 1

1. Wheat can be grounded into flour but flour cannot be turned into wheat again this type of change is called irreversible change.
2.
Burning of paper is an irreversible change because burnt paper or its ashes cannot be turned into paper again

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Answer 2

Answer:

we can't change flour into wheat because it is chemical change and in chemical change things can't turned back into the local thing

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