The major component of biogas is .......

The technology of biogas production from cow dung was developed in India largely by the efforts of

The technology of biogas production was developed in India due to the efforts of

Which is produced during anaerobic fermentation of agricultural wastes?

Study the following flow chart of biogas production and select the correct option for $A, B$ and $C$.
Stage $III$: $C$
Stage $II$: Organic acids $\xrightarrow{B}$ $C$
Stage $I$: Soluble compounds or monomers $\xrightarrow{A}$ Organic acids
(Note: The flow chart shows: Proteins,Fats,Cellulose,Hemicellulose $\rightarrow$ Soluble compounds or monomers $\xrightarrow{A}$ Organic acids $\xrightarrow{B}$ $C$)

In a biogas plant,the role of acidogenic bacteria is to