1.

List two ways in which animal dung can be utilized as a fuel. Out of these two which one do you think is better ? Justify your answer.

Answer»

Solution :Two ways:
(i) as cow dung cakes,
(II) as BIOGAS.
Biogas is better than cow dung cakes because it has high heating capacity and are non-polluting as it burns WITHOUT smoke and leaves no residue like ash. Slurry left in the biogas plant is a good MANURE for fields.


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