Choose the incorrect statement from among the following:
A. We are encouraged to plant more trees so as to ensure clean environment and also provide biomass fuel.
B. Gobar gas is produced when crops, vegetable wastes etc., decompose in the absence of oxygen.
C. The main ingredient of biogas is ethane and it gives a lot of smoke and also produces a lot of residual ash.
D. Bio-mass is a renewable source of energy.
Answer:C
Choose the incorrect statement from among the following:
A. We are encouraged to plant more trees so as to ensure clean environment and also provide biomass fuel. B. Gobar gas is produced when crops, vegetable wastes etc., decompose in the absence of oxygen. C. The main ingredient of biogas is ethane and it gives a lot of smoke and also produces a lot of residual ash. D. Bio-mass is a renewable source of energy.