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State two characteristics which a source of energy must have.

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ICSE-HEAT AND ENERGY-EXERCISE -6(C)
  1. State two characteristics which a source of energy must have.

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  2. Name the two groups in which various sources of energy are calssified....

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  3. What is meant by renewable and non renewable sources of energy? State...

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  4. Select the renewable and non renewable sources o energy from the foll...

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  5. Why is the use of wood as a fuel not advisable although wood is a rene...

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  6. Name five renewable and three non -renewale sources of energy.

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  7. What is (i) tidal, (ii) ocean and (iii) geo thermal energy? Explain in...

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  8. What is the mainsource of energy for the earth?

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  9. What is solar energy? How is solar energy used to generate electricity...

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  10. What is a solar cell? State two uses of solar cells. State whether sol...

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  11. State two advantages and two limitations of producing electricity from...

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  12. What is wind energy? How is wind energy used to produce electricity?...

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  13. State two advantages and two limitations of using wind energy for gene...

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  14. What is hydro energy? Explain the principle of genrating electricity f...

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  15. State two advantages and two disadvantages of producing hydro electric...

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  16. What is nuclear energy? Name the process used for producing electricit...

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  17. What percentage of total electrical power generated in India is obtain...

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  18. State two advantages and two disadvantages of using nuclear energy for...

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  19. State the energy transformation in the following: (i) electricity is...

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  20. State four ways for the judicious use of energy.

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