Water pollution can be classified as surface water pollution (for example lakes, streams, estuaries, and parts of the ocean in marine pollution) or groundwater pollution. Sources of water pollution ...

With artificial photosynthesis ... compounds of carbon and nitrogen use light to break water into its constituent parts, ...

The quality of any body of surface or ground water is a function ... Major nutrient sources include agricultural runoff, domestic sewage (also a source of microbial pollution), industrial ...