Q4 of 9 Page 62

Fill in the banks.

(a) Fossil fuels are _______, _________and__________.


(b) Process of separation of different constituents from petroleum is called __________.


(c) Least polluting fuel for vehicles is ___________.

(a) Fossil fuels are coal, petroleum and natural gas.

(b) Process of separation of different constituents from petroleum is called refining.


(c) Least polluting fuel for vehicles is CNG.


More from this chapter

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2

Name the petroleum product used for surfacing of roads.

 3

Describe how coal is formed from dead vegetation. What is this process called?

 5

Tick True/False against the following statements.

(a) Fossil fuels can be made in the laboratory. (T / F)


(b) CNG is more polluting fuel than petrol. (T / F)


(c) Coke is almost pure form of carbon. (T / F)


(d) Coal tar is a mixture of various substances. (T / F)


(e) Kerosene is not a fossil fuel. (T / F)

 6

Explain why fossil fuels are exhaustible natural resources.