Water pollution is the contamination of bodies of water such as lakes, rivers, oceans, and groundwater.   Water pollution brings a lot of bad effects to people. Firstly, it seriously affects human health. Secondly, it affects water sources and aquatic organisms because water is the habitat of fish, crabs, shrimp.  To limit water pollution, we have the following measures: The most important measure is to raise the sense of responsibility of the community.In addition, we must save water; treatment of waste before being discharged into the environment ....