Waste Water Story
Class 7 waste water story quiz by Ms Saniya Nagpal
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Topics of this game:
- Tertiary treatment is a
- Waste water containing human excreta is known as
- Discharge of industrial waste is called
- In which type of toilets, human excreta is treated by earthworm?
- The light materials which float during waste water treatment
- Primary treatment is
- Used water
- World Water Day is celebrated on
- Dried Sludge is used as
- Impurities present in waste water
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