Which of the following treatment(s) will be indicated for a rural water supply from a deep groundwater source ?1. Sedimentation.2. Alum dosage.3. Potassium permanganate dosing.4. Bleaching powder application.Select the correct answer using the codes given below
🗓 Jul 14, 2021
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Victoria🌐 India
can anyone share the explanation, please?
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Christina🌐 India
like it
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