A key characteristic of aquatic dead zones is _________________
A)a high concentration of urban development
B)a lack of water
C)low concentrations of nitrogen and phosphorus
D)a low concentration of keystone species
E)a low concentration of oxygen

Question

Quizplus · Accepted Answer

Aquatic dead zones are defined by low concentrations of dissolved oxygen, which can result in significant harm to aquatic life or even an entire ecosystem collapse. This low oxygen level is usually caused by nitrogen and phosphorus pollution from human activities like agriculture, sewage treatment plants, and urbanization.

A Key Characteristic of Aquatic Dead Zones Is _________________