What influences oxygen levels in the water?

Question

Quizplus · Accepted Answer

Organic wastes, such as from animal waste or decaying plant matter, consume oxygen as they decompose, leading to a decrease in oxygen levels in the water. This can create uninhabitable conditions for aquatic life. Sewage run-off and inorganic nutrients, on the other hand, can contribute to eutrophication and algal blooms, which can also reduce oxygen levels but in a different way. Heat can increase the amount of dissolved oxygen in the water, but it is not a reliable or effective method of improving water quality.

What Influences Oxygen Levels in the Water