1.

Which of the following statements about bio-gas is INCORRECT?

A. Bio-gas burns without smoke and leaves no residue.
B. Bio-gas contains less than 1% methane.
C. Bio-gas is also known as ‘gobar-gas’.
D. Plant parts, vegetable waste and sewage are used in the production of bio-gas.
Answer» C. Bio-gas is also known as ‘gobar-gas’.


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