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What is a source of energy ? What are th...

What is a source of energy ? What are the two main categories of the sources of energy ?

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LAKHMIR SINGH & MANJIT KAUR-SOURCES OF ENERGY -Exercise
  1. 'The ignition temperature of a fuel is 80^(@)C. What does this mean ?

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  2. Fill in the following blank with a suitable word : The amount of he...

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  3. What is a source of energy ? What are the two main categories of the s...

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  4. State any four characteristics of a good source of energy.

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  5. What is meant by a non-renewable source of energy ? Give two example o...

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  6. What is meant by a renewable source of energy ? Give two example of re...

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  7. What are renewable and non-renewable sources of energy ? Give examples...

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  8. Why are fossil fuels classified as non-renewable sources of energy ?

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  9. Name two energy sources that you would consider to be renewable. Give ...

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  10. Name two sources of energy which you consider to be non-renewable. Giv...

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  11. (a) Classify the following into renewable and non-renewable sources of...

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  12. Coal is said to be formed from the wood of trees. Why then is coal con...

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  13. (a) What is a fuel ? Give five examples of fuels. (b) What are th...

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  14. An example of a renewable source of energy is :

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  15. A non-renewable source of energy is :

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  16. Which of the following is not a renewable source of energy ?

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  17. What is a good fuel ?

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  18. The fuel having a calorific value of 55 kJ/g is likely to be :

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  19. A newly planted sapling usually grows and matures into a tree in more ...

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  20. Which of the following fuels has the highest calorific value ?

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