The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.

-Upon closer examination,the fish appeared to have died from a lack of oxygen.What time of day did the fish most likely die?

Question

The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.
 
-Upon closer examination,the fish appeared to have died from a lack of oxygen.What time of day did the fish most likely die?

Quizplus · Accepted Answer

Fish are more likely to die from a lack of oxygen just before dawn because photosynthesis, which produces oxygen, stops at night, and oxygen levels are at their lowest just before sunrise.

The Following Question(s) Relate to the Data Table Below, Showing