Eutrophication is the process
excessive increasing of nutrients,
phosphate and nitrate, in due to
direct deposit non treated sewage.
The actas fertilizers leading to
proliferation of aquaticalgae.
With exaggerated growth of the
population the number of
bacteria that cause decomposition
organic material also increases.
proliferation of these bacteria
the dissolved oxygen killing and
other animals. Besides, lack of
oxygen causes decomposition to be
assumed anaerobicbacteria.
Anaerobes multiply and
hydrogen sulphide that makes
improper to other living and
creates a putrid .