Study Guide Answer Key

Here are the answers to the Aug. 31, 2022 edition of TPO's Exam Study Guide: Duckweed can be a nuisance and cause problems in facultative lagoons. What is the recommended method of controlling excessive duckweed outbreaks? The answer to the question is C, physical removal. Some treatment facilities will actually use duckweed to control excessive algae growth, however, duckweed is an extremely fast aggressive aquatic plant and can overtake a facultative lagoon cell in a very short amount of time. The most recommended method of controlling duckweed is by physically removing it. This can be done by using a boat with rake or board