Why is a slurry of cattle dung(gobar) added to bio-wastes in the tank of a gobar gas plant for generation of biogas?

Why is cattle dung used to produce biogas ?

What is biogas? Discuss its production in a gobar gas plant?

Why cattle dung is main raw material of gobar gas production?

Give two reasons for using gobar (cow dung) in biogas plant.

Which way of using cow-dung as fuel for domestic use is better:use of cow-dung cakes or use of cow-dung in a bio-gas plant?give three reasons in support of your answer

Large quantity of sewage is generated every day in cities and towns, Which is treated in Sewage Treatment Plants (STPs) to make it less polluted. Given below is the flow diagram of one of the stages of STP. Observe the given flow diagram and answer the questions accordigly. Explain the final step that results in the formation of biogas in the large tank before the treated effluent is released into waterbodies.

Large quantity of sewage is generated every day in cities and towns, Which is treated in Sewage Treatment Plants (STPs) to make it less polluted. Given below is the flow diagram of one of the stages of STP. Observe the given flow diagram and answer the questions accordigly. Why is primary effluent passed into large aeration tanks?