Question

Name four gases commonly present in biogas. State two advantages of using this gas over

fossil fuels.​

Answer 1

ANSWER :

Methane, carbon dioxide, hydrogen and hydrogen sulphide.

Advantages of using biogas over fossil fuels are:

➡️Biogas burns without smoke, leaves no residue unlike coal.

➡️Biogas is cheaper as compared to fossil fuels.

Answer 2

Four gases commonly present in biogas are : Methane, hydrogen sulphide, carbon dioxide and hydrogen.

$\underline{\sf{Two\:of\:the \:advantages :-}}$

1. Biogas is a renewable source of energy whereas fossil fuels aren't.
2. Biogas is eco friendly , efficient and is a good source of manure.