How eutrophication can change an aquatic ecosystem into a land ecosystem

Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both.

Eutrophication can be a natural process in lakes, occurring as they age through geological time.

Eutrophication was recognized as a pollution problem in European and North American lakes and reservoirs in the mid-20th century.

Human activities can accelerate the rate at which nutrients enter ecosystems.

littering streams           is the answer

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs