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In a few years the fuels on earth will b...

In a few years the fuels on earth will be exhausted. Think, what would happen to human civilzation?

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NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. It is difficult to burn a heap of green leaves but not a heap of dry l...

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  2. Give supporting arguments for both the statements (1) fire is useful (...

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  3. In a few years the fuels on earth will be exhausted. Think, what would...

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  4. What would happen if oxygen stops to support combustion? Make a guess....

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  5. Use of more fuels in our daily life causes air pollution and it is har...

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  6. Let us assume that you are on the moon. If you try to focus sunlight o...

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  7. Can you heat water in a paper vessel? How is it possible?

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  8. "Is combustion possible without the supply of oxygen? Discuss with you...

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  9. Explain giving reasons: In which of the following situations water wil...

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  10. List the ways adopted by fire fighters to combat fires.

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  11. Draw the diagram of candle flame and label all the zones.

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  12. How do you organize your daily works with fuels to conserve bio-divers...

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  13. Madhu wants to avoid automobiles and started going to school by bicycl...

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  14. How do you feel about "Fuels have become a part of human life"?

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  15. Why do some materials burn and some do not?

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  16. Why do some materials which do nt burn at normal temperature burn at h...

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  17. If you lift the glass tumbler (which is placed over a burning candle) ...

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  18. How do you say that the gas released in the experiment is oxygen?

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  19. Can we replace potassium permanganate (KMnO4) with any other substance...

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  20. Is there any other procedure to prove that oxygen is needed for burnin...

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