Hypoxic systems are characterized as blank oxygen areas and form for my destruction to the nitrogen cycle through the process of blank

1. Low

2. Eutrophication

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.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

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