Q31 of 269 Page 131

Which of the following is not a fossil sources of energy?

It is the excretion of a cow and not the remains of dead and decaying plants and animals.

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The aviation fuel which is used in the engines of jet aeroplanes is:

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The ultimate sources of energy stored in fossil fuels is:

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The fuel which is not used at thermal power plants is:

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LPG consists mainly of: