Give two examples each of:

(a) solid fuels

(b) liquid fuels

(c) gaseous fuels

Explain how, carbon dioxide is able to control fires?

If you see a person whose clothes are on fire, how will you extinguish the fire? Give reason for your answer.

Name the various zones of a candle flame. Which zone(or part) of a candle flame is the least hot(or coldest)?

Why does a goldsmith blow air into the kerosene lamp flame with a blow-pipe?