Question

name four gases commonly present in biogas.state two advantages of using this gas over fossil fuels.

Answer 1

it is made up of methane , carbon dioxide , hydrogen sulphide and ammonia .

its advantages are :-

Biogas is a renewable source of energy, but fossil fuel is non renewable.

Biogas reduces green house effect and helps recycling of the biodegradable wastes



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Answer 2

Answer:

Four gases present in biogas

• Methane
• Carbon dioxide
• Hydrogen
• Hydrogen Sulphide

Advantages over Fossil Fuels

• Does not leave any ash and residue after combustion

• Does not burn with a smoke and does not cause pollution
• Renewable source of energy

Hope this helped u .......All the best....