Answer:
1. Low
2. Eutrophication
Step-by-step explanation:
Hypoxic systems are characterized as LOW oxygen areas and form for my destruction to the nitrogen cycle through the process of EUTROPHICATION.
These low oxygen areas are known as DEAD ZONE and they came as a result of increment in chemical nutrients such as nitrogen and phosphorus.
The process of EUTROPHICATION also lead to lead algae bloom; a rise in the population of some specific phytoplankton.