Hi everyone Today we discussed about how water pollution harms water. Water pollution happens when toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water . Water pollution can cause many effects on the environment, like acid rain and oil spills. Water pollution doesn't just affect the environment. If drinking water contains unsafe levels of contaminants, it can cause health effects , such as gastrointestinal illnesses, nervous system or reproductive effects , and chronic diseases such as cancer. ; it also affects people and other animals. ... When an oil spill occurs , it kills thousands of fish. Fish can't breathe the polluted water . Hence, we Keystonians decided to do something about this and minimize water pollution. Thank you. Anish