Question

Q.3. State whether the statements given below is True or False.

1. Food is fuel for our body.
2. Burning of charcoal produces flame with four distinct zones.
3. The fuel can be only liquid in nature.
4. Sun produces heat and light because of combustion.
5. It is easy to burn a piece of wood through a matchstick.
6. Soda acid fire extinguisher contains sodium bicarbonate + dil. Sulphuric acid.
7. The inner central dark zone of a candle flame is the hottest region.
8. The principle of all fire-extinguisher is to cut off the air supply and to cool the burning substance below its ignition temperature.

Answer 1

Answer:

1. true

2. false

3. false

4. false

5. true

6.

Answer 2

Answer:

1. true

2. false

3. true

4. false

5. false

6. true

7. true

8. false