Water Pollution - Source, Types, Effects and Purification Methods

Click on the below Url to refer to detailed presentation on Water Pollution causes, Effects, Prevention and Purification methods - Primary, Secondary and Tertiary Treatment

https://docs.google.com/presentation/d/1xAgWmDABtmLwmshgyMdqUbpkm92oFUhSB6jWvXOTm-Y/edit?usp=sharing

Quiz