Test: Middle School Life Science

1.

What is eutrophication and how is it caused?

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

1/5 questions

0%
Learning Tools by Varsity Tutors