Long answer questions IV — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Suggest a few useful ways of utilising waste water.

Which of the following are the correct ways to utilise wastewater in useful ways?

Plants can be watered using wastewater.
It can be used to wash vehicles.
It can also be used to recharge the groundwater.
Water can be treated chemically to make it useful again.
It can be used on infertile soil or suffering from a drought.
All the above

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