Question

Write about any four changes which are reversible ?

Answer 1

Explanation:

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Answer 2

Answer:

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Explanation:

Melting: Melting is when solid converts into a liquid after heating. Example of melting is turning of ice into water.

Freezing: Freezing is when a liquid converts into a solid. Example of freezing is turning of water into ice.

Boiling: Boiling is when a liquid converts into a gas. Example of boiling is turning water into water vapour.