Question

give the importanceStudy any pond Lake river ecosystem in your area and make a report on what biodiversity you have seen at the place and also if there are any threats like pollution solid waste can you give me the section of project​

Answer 1

Pollution is defined as "to make something impure"—in this case, the fresh water in lakes, streams, and groundwater . The pollution of water restricts its use for some human need or a natural function in the ecosystem .

Types of Pollutants

Physical.

Physical pollutants to lakes and streams include materials such as particles of soil that are eroded from the landscape or washed from paved areas by flowing water. Once in a lake or stream, some particles settle out of the water to become bottom sediments . Chemical pollutants adsorbed (bound) to the particles are also incorporated into the sediments, where they may be permanently buried, or be carried by the water currents to other locations.

Another type of physical pollutant is heat that may be discharged from an industrial source, or runoff from hot surfaces in warm weather. The overclearing of shade trees along the shoreline of a lake or stream may also permit sunlight to warm waters above the normal temperature range.

Chemical.

Fresh waters naturally contain chemicals dissolved from the soils and rocks over which they flow. The major inorganic elements include calcium, magnesium, sodium, potassium, carbon, chlorine, and sulfur as well as plant nutrients , such as nitrogen, silicon, and phosphorus. Organic compounds derived from decaying biological materials may also be present. In addition, nearly all fresh waters contain some human-made compounds, such as pesticides and other industrial and consumer products.