What is Fuel ? (2 marks)
What is fuel? [1 MARK]
What are fossil fuels? Give examples. [2 MARKS]
What are the parameters based on which a fuel is selected? [2 MARKS]
What is a fuel? On what parameters do we judge whether the fuel is good or not? [5 MARKS]
What is the difference between the burning of a candle and the burning of a fuel like coal? [2 MARKS]