Why is biogas consided superior to animal dung as a coal ?
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Answer:
Biogas is a better fuel than animal dung cakes.
Explanation:
1.Burning of animal dung cake causes lot of pollution whereas biogas is a smokeless fuel.
2.The calorific value of animal dung cake is much lower than that of biogas.
3.Animal dung cakes leave residue after burning whereas biogas leaves no residue.
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