Which of the following statements regarding biochemical-based power plants is/are true?
A) Methane is emitted along with carbon dioxide in aerobic digestion.
B) Sewage gas represents a mix of carbon dioxide, methane and trace gas.
C) Syngas is generated as a result of gasification in such a plant.
1
Only A and B
2
Only B
3
Only A and C
4
Only B and C