1. Burning of paper and formation of curd are reversible changes.
Write true or false for each statement. Rewrite the false statements correctly.
1. Burning of paper and formation of curd are reversible changes.
2. A natural change can also be a desirable change.
3. Deforestation is a man-made change.
4. Decomposition of leaves is a fast change.
5. Dissolving of solute in a solvent and rusting of iron are both physical changes.
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1 Answers
1. False.
Correct: Burning of paper and the formation of curd are irreversible changes.
2. True
3. True
4. False
Correct: Decomposition of leaves is a slow change.
5. False
Correct: Dissolving of solute in a solvent is a physical change and rusting of iron is a chemical change.
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