Question

Write true or false for each statement. Rewrite the false statements correctly.

1. A natural change can also be a desirable change.

2. Deforestation is a man-made change.

3. Decomposition of leaves is a fast change.

4. Dissolving of solute in a solvent and rusting of iron are both physical changes.

Answer 1

1. True

2. True

3. False. 

Correct: Decomposition of leaves is a slow change.

4. False. 

Correct: Dissolving of solute in a solvent is a physical change and rusting of iron is a chemical change.