The degradation of Lake Washington resulted from the introduction by sewage treatment plants of which of the following?

Question

Quizplus · Accepted Answer

The degradation of Lake Washington resulted from the introduction of phosphorus. This led to the excessive growth of algae and other aquatic plants, which depleted the lake's oxygen levels and ultimately led to the death of fish and other aquatic life. The primary source of phosphorus was the discharge of treated sewage from the surrounding cities.

The Degradation of Lake Washington Resulted from the Introduction by Sewage