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One of the following is not an exhaustible source of energy. This one is: A. natural gas B. petroleum gas C. coal gas D. bio gas |
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Answer» D. bio gas Bio gas can be produced from raw materials such as agricultural waste, manure, plant material, green waste or food waste. It is a renewable source of energy. Natural gas, coal gas and petroleum gas are fossil fuels and are nonrenewable sources of energy. |
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