The main constituents of biogas are
A. Methane and Carbon di-oxide
B. Methane and Nitric oxide
C. Methane, Hydrogen and Nitric oxide
D. Methane and Sulphur di-oxide
Answer:A
The main constituents of biogas are
A. Methane and Carbon di-oxide B. Methane and Nitric oxide C. Methane, Hydrogen and Nitric oxide D. Methane and Sulphur di-oxide