Question

V. Answer the following questions :
1. A sharpener loses its sharpening power, if used continuously. Is the loss of sharpening
power a reversible change or an irreversible change?
for your answer.​

Answer 1

Yes, it is a reversible change because the edges of sharpener blade can be grinded by a suitable apparatus to make it sharp again.

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Answer 2

Answer:

It is a reversible change because the edge of the sharpener blade can be grinded by suitable apparatus to make it sharp again