Fuel
Read the Passage and Answers the Following Questions:-
Fuel is a material that is burned in order to get heat and light and also to generate power. The Process of burning is a chemical reaction. A material combines with oxygen from the air and gives off energy. The energy is given off in the form of heat and light. Fuels Deepak En can also be classified as solid, liquid and gaseous. Wood was one of the first fuels used by man. It was the easiest to get the cheapest. After wood started becoming scarce it was replaced by coal.
Coal contains a high percentage of carbon. Carbon is the most important ingredient in most fuels. Fuels with a high percentage of carbon burn evenly and with a hot flame. The most important liquid fuels come from petroleum. However, petroleum reserves are becoming exhausted with the passage of time.
Questions
(a) What is the source of energy?
(b) What is produced with the burning of the fuel?
(c) Why was wood replaced by coal?
(d) Which factor decides the quality of fuel?
(e) Give meanings of these words in English : (i).process, (ii) reserves.
(f) Give a suitable title to the passage.
Answers:
(a) Fuel is the source of energy.
(b) Heat, light and power are produced with the burning of the fuel.
(c) Wood was replaced by coal because it had started to become scarce.
(d) The percentage of carbon present in a fuel decides the quality of fuel.
(e) (i) Method. (ii) store
(f)”Fuel” and its many forms:
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