There are many types of pollution, and water pollution is one of the most well-known. Water pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater. It can be caused by point source pollutants, such as: industrial waste, sewage, pesticides, etc. and non-point pollutants: from storm, atmosphere, etc. The effects of water pollution are devastating. Humans will die if they drink contaminated water. Animals and plants will also die in the same way. We should give heavy fines to companies and factories if they're caught dumping waste into water. Water is very important to our lives, so we should protect them.