Question

Why biogas is called a clean fuel?

Answer 1

biogas or biofuel is called a clean fuel because it does not produce any residue or any kind of harmful gases at the time of combustion.

It is made up of 75 % of methane which is a clean gas.

On combustion this gas does not produce the harmful gas carbon dioxide which is CO2., or other greenhouse gases.

Answer 2

Answer:

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