(A) direct combustion (X)
(B) fermentation (X)
(C) both A and B ()
(D) none of these (X)
Answers: Biomass can be converted into fuels by both A and B .
(A) direct combustion (X)
(B) fermentation (X)
(C) both A and B ()
(D) none of these (X)
Answers: Biomass can be converted into fuels by both A and B .
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