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Coal is said to be formed from the wood ...

Coal is said to be formed from the wood of trees. Why then is coal considered to be a non-renewable source of energy whereas wood is a renewable source of energy ?

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Coal is a renewable source of energy.

Non-renewable source is

A non-renewable source of energy is :

What is a non-renewable source of energy ?

Name one non-renewable source of energy.

Which one of the following is a renewable source of energy?

LAKHMIR SINGH & MANJIT KAUR-SOURCES OF ENERGY -Exercise
  1. Name two sources of energy which you consider to be non-renewable. Giv...

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

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

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

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

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  6. A non-renewable source of energy is :

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

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  8. What is a good fuel ?

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

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

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

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  12. The fuel having the lowest calorific value is :

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  13. There are four fuels which all contain only carbon and hydrogen. The f...

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  14. One of the following is not a characteristic of a good fuel. This is :

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  15. Which of the following is not a fossil fuel ?

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  16. Most of the fuels contain carbon as one of the constituents. Name a fu...

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  17. A hydro-power plant converts one form of energy into another. Name the...

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  18. What type of energy is possessed by flowing water ?

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  19. Flowing water can rotate a turbine. Which type of energy is used up by...

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  20. Name the original source of wind energy.

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