State two uses of Biogas?
Biogas is most commonly used as a cooking fuel, heating fuel. It can also pe used in production of electricity.
(a) What is biogas ? Name the major component of biogas. (b) What are the raw materials used for making biogas ? (c) Describe the construction and working of a biogas plant with the help of a labelled diagram. (d) Write any two uses of biogas. (e) Write any two advantages of using biogas.