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LAKHMIR SINGH & MANJIT KAUR-WASTE WATER STORY-EXERCISE
  1. Fill in the following blank with suitable words: Wastewater releas...

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  2. Fill in the following blank with suitable words: Cleaning of water...

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  3. Fill in the following blank with suitable words: Dried …………………is us...

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  4. Fill in the following blank with suitable words: Drains get blocke...

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  5. Fill in the following blank with suitable words: Untreated human e...

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  6. Fill in the following blank with suitable words: Untreated human e...

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  7. Fill in the following blank with suitable words: Vermi-processing t...

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  8. Fill in the following blank with suitable words: All the portable t...

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  9. Fill in the following blank with suitable words: Poor sanitation i...

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  10. What is mean by : sewer?

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  11. What is meant by : sewerage?

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  12. Explain the function of bar screen in a wastewater treatment plant.

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  13. What is sludge ? Explain how it is treated .

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  14. Name two useful substances which are produced by the treatment of sewa...

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  15. What is the purpose of bubbling air into the aeration tank during the ...

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  16. Name the various wastes which should not be thrown down the drain . W...

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  17. why should oils and fats not be released in the drain ?

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  18. What is a vermi-processing toilet ?

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  19. Name the useful by -product obtained from vermi-processing toilets.

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  20. What will happen if the large amount of waste generated at public plac...

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