Question

question 2
0.5 pts
hypoxic conditions (or dead zones) occur when dissolved oxygen levels fall below___ml of o₂/l of water, which will cause fish and other marine life to abandon their habitats or die.
10.0
1.0
5.0
2.0

Explanation:

Hypoxic conditions (dead zones) are defined by dissolved oxygen levels below 2.0 mL O₂/L water, which harms marine life.

Answer:

2.0