Water pollution is primarily caused by humans. Polluting and making the water bad effects the environment in a negative way. This happens through many different ways like sewage, farm runoff, and factories. The more factories that are built, the more pollution is likely going to happen. People cause pollution all the time especially in sewers. This is caused because of the dumping of chemicals into the sewer drains. All of this is very bad and needs to come to a stop soon.
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