Which of the Following Statements Is NOT True with Respect

Multiple Choice

Which of the following statements is NOT true with respect to dams and reservoirs?

A) dams are generally not effective at flood control and are mainly used to generate electricity.
B) water released from reservoirs is cooler than a natural stream, which harms aquatic ecosystems.
C) sediment is trapped behind dams and slowly fills in reservoirs.
D) reservoirs serve as an important source of fresh water.
E) stream discharge becomes fairly uniform, which harms aquatic ecosystems.