FRESHWATER ECOSYSTEM · Freshwater ecosystem refers to the water found in Lakes, Ponds, Streams and any other body of water other than the sea. · Freshwater has less than one gram per liter of Dissolved solids, mainly Salts of which Sodium chloride. Plants and Animals living in freshwater would not usually be able to live in Salt water, because their bodies are adapted to a low-salt content. · Freshwater ecosystems are vulnerable to water pollution that arises from a range of human activities. They are also used as water supplies for human use. · The study of Freshwater Biology is called as Limnology. · Fresh water is not the same as potable water (or drinking water). Much of the earth's fresh water (on the surface and groundwater) is unsuitable for drink...