(I) Coal, petroleum and natural gas are called fossil fuels. |
(II) Coal and natural gas are exhaustible substances. |
(III) CNG is more polluting than petrol. |
(IV) Coke is used in the manufacture of steel. |
A) I and II only
B) II and IV only
C) I, III and IV only
D) I, II and IV only
Correct Answer: D
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