Assume You Are Vacationing by a Small Lake, Where You

Multiple Choice

Assume you are vacationing by a small lake, where you intend to do some fishing. When you arrive at this lake, you notice a slight sulfur smell. Which phase of cultural eutrophication does this sulfur smell indicate?

A) An algal bloom.
B) Anaerobic bacteria are decomposing the aerobic organisms.
C) Aerobic bacteria are decomposing the algae.
D) Fish have died from lack of oxygen.
E) Insect populations in the lake are dying off.