Which of the following is a component of bio gas ...

Which of the following is a component of bio-gas?

Methane is gas that is found in small quantities in Earth's atmosphere. Methane is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms. Methane is a powerful greenhouse gas. Methane is flammable, and is used as a fuel worldwide. It is a principal component of natural gas.

By: santosh