4. A farmer uses gas from a gobar gas plant as fuel. What is the main ingredient of hydrocarbon in gobar gas? a. Methane b. Ethane c. Propane d. Butane
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Answer:
a. Methane
Explanation:
Biogas is one of the most important bioenergy to solve the environmental and energy challenges to replace natural gas or transportation fuel. Biogas produced from anaerobic digestion mainly contains methane (50–70%) and carbon dioxide (30–50%).
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