20. Cell Membrane 19. Mitochondria 18.<span> Osmosis</span>
Answer:
Eutrophication
Explanation:
Eutrophication is the name given to the natural nutrient enrichment of a shallow lake, estuary, or slow-moving stream. It is caused mostly by runoff of plant nutrients, such as nitrates and phosphates, from surrounding land.
It was developed by a Swedish<em> </em>Botanist<u> </u><em><u>Linnaeus</u></em> in 17th century.