If other factors are equal, which of the following environments would have the highest level of dissolved oxygen?
A) warm, salty water at low elevation
B) cool, salty water at low elevation
C) warm freshwater at high elevation
D) cool freshwater at high elevation
E) cool freshwater at low elevation

Question

Quizplus · Accepted Answer

Cool freshwater at low elevation would have the highest level of dissolved oxygen because cooler temperatures increase oxygen solubility, freshwater holds more oxygen than salty water, and lower elevations have higher atmospheric pressure, which increases oxygen solubility.

If Other Factors Are Equal, Which of the Following Environments