If dams were constructed on all the streams leading to a shoreline all of the following would be expected to happen to the coast except?
A) Beaches would get smaller or even disappear.
B) Coastal erosion would increase.
C) Sand bars and spits would decrease in size.
D) Barrier islands would retreat and decrease in size.
E) An increase in the number of tsunamis.

Question

Quizplus · Accepted Answer

Dams trap sediments that would otherwise be carried by rivers to the coast. This reduction in sediment supply leads to smaller beaches, increased coastal erosion, and a decrease in the size of sand bars, spits, and barrier islands. However, dams do not influence the occurrence of tsunamis, which are caused by underwater earthquakes, volcanic eruptions, or landslides.

If Dams Were Constructed on All the Streams Leading to a Shoreline