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For what purpose do we need water in our...

For what purpose do we need water in our life ?

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NCERT TELUGU-COAL AND PETROLIUM-EXERCISE
  1. Will the above resources like fossil fuel be available for ever?

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  2. Won’t we ever run out of air? which type of resource?

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  3. For what purpose do we need water in our life ?

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  4. Can these resources be exhausted by human activities?

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  5. Do we have unlimited supply of coal and petroleum?

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  6. What will happen if all the forests wer cut down?

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  7. How long do you think it would take to grow the forests again ?

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  8. How long will the fossil fuel like petroleum be available ? Is it inex...

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  9. List out the natural resources which are limited and which are abundan...

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  10. What would be our future energy resources?

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  11. List out the natural resources which are limited and which are abundan...

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  12. What actions are required to meet the future energy needs?

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  13. Can you give some more examples where energy or fuel resources are mis...

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  14. Can you suggest alternate ways to save the fuel resources?

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  15. How is biodiversity affected by excessive use of fossil fuels?

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  16. How is water distributed on the globe ? How much of fresh water is ava...

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  17. How is water distributed on the globe ? How much of fresh water is ava...

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  18. How is water distributed on the globe ? How much of fresh water is ava...

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  19. Write an experiment which shows that when we heat high quality coal (c...

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  20. IF cos A=7/25, then find sin A and cosec A. What do you observe?

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