When lava first breaks through the surface of the Earth, it is an extremely hot liquid. On average, fresh lava can be between 1,300Â° F and 2,200Â° F! Depending on its exact temperature, fresh lava usually glows either orange/red (cooler) or white (hotter). Eventually, lava cools and returns to solid rock again.
Eutrophication is the process of increase of plant nutrients in water with the consequent. increase in the growth of algae and higher plants. This process is facilitated by external. and internal (such as nitrogen fixation) sources of nutrients. Input of nutrients may be. from point or diffuse sources.
Phosphorus and nitrogen are the main nutrients encouraging the growth of organic matter and algae which cause eutrophication in water bodies. Water quality is now improving in water bodies all over the world in areas like the Baltic Sea thanks to projects that reduce phosphorus discharge from wastewater treatment plants. The dominating process for the removal of phosphorus is chemical precipitation.