_____ is an overabundance of nutrients that leads to excessive plant growth and reduction of oxygen in an ecosystem.
denitrification
eutrophication
nitrification
phosphorylation

Respuesta :

eutrophication, is the best answer.
eutrophication is the excess of salts in the sea water leading to excess growth of algae. this blocks sunlight from reaching other plants so they die. bacteria comes to eat the dead organisms reducing oxygen supply in the sea so there is demand.