Question

Why is LPG regarded as a better fuel than cowdung cakes?
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Answer 1

Answer:

Biogas is a better fuel than animal dung cakes because:i Burning of animal dung cake causes lot of pollution whereas biogas is a smokeless fuel. ii The calorific value of animal dung cake is much lower than that of biogas. iii Animal dung cakes leave residue after burning whereas biogas leaves no residue.

Explanation:

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