Choose the incorrect statement.1) We are encouraged to plant more trees so as to ensure clean environment andalso provide biomass fuel2)Gobar-gas is produced when crops, vegetablewastes etc.,decompose in the absence ofoxygen3)The main ingredient of biogas is ethane and it gives a lot of smokeand also produces a lot of residual ash4)Bio-mass is a renewable source of energy

Choose the incorrect statement.1) We are encouraged to plant more tree

1.	Choose the incorrect statement.1) We are encouraged to plant more trees so as to ensure clean environment andalso provide biomass fuel2)Gobar-gas is produced when crops, vegetablewastes etc.,decompose in the absence ofoxygen3)The main ingredient of biogas is ethane and it gives a lot of smokeand also produces a lot of residual ash4)Bio-mass is a renewable source of energy
Answer» We are encouraged to plant more trees so as to ensure CLEAN environment andalso provide biomass fuel Gobar-gas is PRODUCED when crops, vegetablewastes etc.,decompose in the absence ofoxygen The main ingredient of biogas is ETHANE and it gives a lot of smokeand also produces a lot of residual ash Bio-mass is a renewable source of energy Solution :Encouraging to plant more trees we ensure clean and pollution free environment and it also provide bio-mass fuel. Gobar-gas is made from the DECOMPOSITION of cow dung, crops,vegetable wastes, etc., decompose in the absence of oxygen. The main ingredient of bio-gas is methane. It burns without smoke, leaves no residue like ash in wood, charcoal and coal burning. Bio-mass is living matter or its residues and is a renewable source of energy. Thus, part (c ) is the INCORRECT statement.