|| living, active, or occurring
in the absence of free oxygen
||The process of eutrophication
accelerated by man-made pollution.
||reduction of nitrates or nitrites
commonly by bacteria, and usually resulting in the escape of Nitrogen into
||waste material (sewage) discharged into the environment, esp. when
serving as a pollutant.
||The naturally occurring biological
process of the enrichment of water with nutrients.
||the process of nitrifying;
the oxidation as by bacteria of ammonium salts to nitrites and the further
oxidation of nitrites to nitrates.
||a salt or compound of orthophosphoric acid
||The scientific study of the 30,000 or so species of algae
||The passively floating or weakly swimming, usually minute, animal and
plant life of a body of water.
||Animal life of the plankton