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Give two reasons for using gobar (cow du...

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

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MBD -HARYANA BOARD-SOURCE OF ENERGY-EXAMPLE
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  2. What is biogas? Give any four uses?

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

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  5. What is natural gas? What are its advantages over other fuels?

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  7. Explain LPG.What are its uses?

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  10. Write any two limitations of solar heating devices.

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  12. Write four areas where solar cell is used as source of energy?

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  18. What is greenhouse effect?Explain in detail

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