Question

c. State whether 'true' or'false':
1. An iron nail is a combustible substance.
2. Oxygen is essential for combustion.
3. Minimum temperature at which a substance
catches fire is its calorific value.
4. Water and carbon dioxide are fire extinguishers.
5. Yellow flame from a gas burner shows
complete burning of the fuel.
6. Fossil fuels are an inexhaustible natural
resource of fuel.​

Answer 1

Answer:

1 true.

2. true.

3. false

4. true.

5 true

6 true

Answer 2

Explanation:

1. False
2. False
3. True
4. False
5. True
6. True

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