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What is wind mill? Write its two advanta...

What is wind mill? Write its two advantages?

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MBD -HARYANA BOARD-SOURCE OF ENERGY-EXAMPLE
  1. Write four areas where solar cell is used as source of energy?

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  2. Hydrogen has the highest calorific value, but it is not used as a fuel...

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  3. What is wind mill? Write its two advantages?

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  4. On what basis would you classify energy sources as : (a) renewable a...

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  5. On what basis would you classify energy sources as : (a) renewable a...

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  6. What are fossil fuels?How are they formed?why are they non-renewable s...

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  7. What is greenhouse effect?Explain in detail

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  8. Differentiate between renewable and non-renewable sources of energy wi...

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  9. Oceans are vast store of energy'' justify this statement

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  10. What is meant by ocean thermal energy

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  11. What are solar reflectors and solar concentrators?

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  12. What are the constituents of coal gas ? State one use of coal gas.

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  13. Give two examples of each : Fossil fuel

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  14. What is the range of temperature which can be achieved in a box-type s...

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  15. Name the device which directly converts solar energy into electrical e...

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  16. What is biogas?

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  17. What are the main constituents of biogas?

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  18. Name the main component of biogas?

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  19. What type of energy is possessed by huge waves near the seashore?

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  20. What is tidal energy ? How is it harnessed ?

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