please solve this questions!!!
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1. The materials which catch fire are are called combustible substances.
Eg- wood, paper, etc.
2. The three conditions required for combustion are:
-air (oxygen)
-combustible substance
-ingnition temperature.
3. Slow combustion takes place when there is insufficient amount of oxygen present.
4. The amount of heat produces on complete combustion of one kg of fuel is known as it's calorific value.
5.-it should have a hight calorific value.
- it should be cheap and readily available.
6. Water is a good conductor of electricity. If water is used to stop electric fires the person might get an electric shock.
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