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Lakhmir Singh & Manjit Kaur - Physics

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Q. 10

The world's known coal reserves are expected to last for about:
A. 200 years

B. 400 years

C. 500 years

D. 100 years

Class 10th Lakhmir Singh & Manjit Kaur - Physics 3. Sources of Energy

Answer :

Ultimate reserves designates all the coal that can eventually be mined in a given zone (that can be the whole planet).

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