Q49 of 65 Page 89

The gas which occurs above the petroleum oil trapped under the rocks is called:

Petroleum can be extracted from under the sea bed. It can be extracted with giant drilling machines. The layer containing petroleum oil and gas is above that of water.

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The major component of LPG is:

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Which is the major component of CNG?

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One of the following is not an exhaustible source of energy. This one is: