Q5 of 37 Page 115

Although coal and petroleum are produced by degradation of bio- mass, yet we need to conserve them. Why?

Coal and Petroleum are the natural resource and are non-renewable. Once they exhausted, they can’t be renewed again for millions of years. Coal and Petroleum are being used at a faster rate and with this rate, they will replenished soon and will not be renewed again. So, it is necessary to conserve coal and Petroleum.


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