Eutrophication:Eutrophication is the excessive growth of algae and other plants due to an increase in nutrients (such as nitrogen and phosphorus) in a body of water, leading to hypoxic conditions.
Dead Zone: A dead zone is an area in a body of water where hypoxic conditions are so severe that it cannot support any aquatic life.
Dissolved Oxygen: Dissolved oxygen refers to the amount of oxygen gas dissolved in water, which is crucial for the survival of aquatic organisms.