During anaerobic digestion of organic waste, such as in producing biog – McqOptions

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1.	During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?
A.	Lignin
B.	Hemi-cellulose
C.	Lipids
D.	Cellulose
Answer» B. Hemi-cellulose

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