英语翻译Water pollution results when substances that are release

英语翻译
Water pollution results when substances that are released into lakes,rivers,oceans,etc.stay in the water or build up at the bottom.This form of pollution may also begin in the air if the air is polluted and causes acid rain.When it rains,the rain will then pollute the water in lakes,rivers,oceans,etc.Soil erosion is one example of natural water pollution and can cause probles if the soil blocks the flow of water and leads to flooding.Pollution from human sources includes chemicals,pesticides,waste from factories and human sewage.