# Revision history [back]

### why biogas is not harmful as it contains methane?

why biogas is not harmful as it contains methane?

biogas gas contains nearly about 70 percent of methane and methane is harmful to the environment , it causes green house effect , then how biogas is eco friendly.

  thank you

 2 No.2 Revision

### why biogas is not harmful as it contains methane?

why biogas is not harmful as it contains methane?

biogas gas contains nearly about 70 percent of methane and methane is harmful to the environment , it causes green house effect , then how biogas is eco friendly.

 thank you

you