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What Are the Two Ways in Which Cow-dung Can Be Used as a Fuel? Which of Them is Better and Why? - CBSE Class 10 - Science

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Question

What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?

Solution

The two ways in which cow dung can be used as a fuel are given below.
1. Cow-dung cakes can be used as a fuel for cooking food.
2. Biogas can be made from cow dung for use as a smokeless fuel.

Biogas is a better fuel as it does not cause air pollution. After extracting biogas, the cow dung can still be used as a manure because it continues to retain all the nutrients that plants need.

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Solution What Are the Two Ways in Which Cow-dung Can Be Used as a Fuel? Which of Them is Better and Why? Concept: Conventional Sources of Energy.
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