The movement of molecules across a cell membrane using a membrane transport protein and cellular ATP energy, generally moving the molecules from a region of low to high concentration, is called

The movement of molecules across a cell membrane using a membrane transport protein and cellular ATP energy, generally moving the molecules from a region of low to high concentration, is called facililated transport

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%