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Name two chemicals used to disinfect the...

Name two chemicals used to disinfect the water.

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NCERT TELUGU-WATER (TOO LITTLE TO WASTE) -Improve your learning
  1. Fill in the Blanks and give reasons:Drains get blocked byand

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  2. What is sewage ? Explain why it is harmful to discharge untreated sewa...

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  3. Why should oils and fats not be released into the drain? Explain.

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  4. Describe the steps Involved in getting clarified water from waste wate...

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

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  6. Untreated human excreta is a health hazard. Explain.

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  7. Name two chemicals used to disinfect the water.

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  8. Explain the function of bar screens in a waste water treatment plant.

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  9. Explain the relationship between sanitation and disease.

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  10. Outline your role as an active citizen in relation to sanitation.

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  11. What would you do to motivate people in your street to utilise toilets...

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  12. What would happen if there are no microbes that break down wastes in s...

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  13. What points would you like to address in the letter for you panchayat ...

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  14. Go to a nearby railway station/bus station/hospital/industry. What typ...

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  15. Fresh water is scarce. What is your contribution to make your family m...

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  16. Prepare at least 5 slogans on "Don't waste water.

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  17. Make a write up for your activity project on preservation of rain wate...

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  18. Is there a check dam or any other water conservation unit in your vill...

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  19. Have you got any doubt about diseases caused byuntreated water? List t...

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  20. If you see water running off from a public tap, what would you do abou...

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