Question

7. Which of the following is a physical but irreversible change...?
Tearing of paper
Melting of ice
Blowing of baloon
None of these

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Answer 1

Answer:

blowing the balloon

Explanation:

Answer 2

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Which of the following is a physical but irreversible change?

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Tearing of paper

Tearing of paper is a physical but irreversible change because we can stick the paper with glue or tape and it is also an irreversible change because it is being teared.