1. 2. Write one word for the following: The substances which make water unfit for human consumption The diseases caused by the polluted/contaminated groundwater 3. The process of removing pollutants from wastewater 4. Solids settled in WWTP during primary and secondary stage 5. Wastewater generated by industries
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- Contaminants
- diarrhoea, cholera etc.
- purification
- Flocs
- industrial waste
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