A small neighborhood pond averaging about 3 meters in depth reveals all the signs of cultural eutrophication,most likely from runoff of lawn fertilizers used by the residents.The water is very cloudy and oxygen levels remain very low,resulting in few fish that can survive.To provide some opportunities for the neighborhood kids to regularly catch fish,the neighborhood association decides to purchase,install,and run a large water fountain in the middle of the pond.
-How could this water fountain help address the eutrophication of this pond? The water fountain will
A)kill most of the algae in the pond.
B)encourage the growth of submerged vegetation.
C)increase the oxygen levels of the pond.
D)remove nutrients from the pond.

Question

Quizplus · Accepted Answer

The water fountain will increase the oxygen levels of the pond by disrupting the water surface and promoting gas exchange between the water and the air. This can help to alleviate the low oxygen levels caused by eutrophication. However, it will not necessarily kill algae or remove nutrients from the pond.

A Small Neighborhood Pond Averaging About 3 Meters in Depth