In order to preserve their beaches,cities located along a coast will often build groynes that protrude into the sea.What is the result of this process?
A)sediment is deposited on the side of the groyne downcurrent,and this results in deposition in the desired location.
B)more sediment is made available to areas downshore,so they also benefit from this engineering process.
C)less sediment is available to areas downshore,so their beaches begin to erode.
D)more sediment is eroded updrift resulting in too much sediment supplied to the downdrift properties.
E)erosion is halted for the entire reach.

Question

Quizplus · Accepted Answer

Groynes trap sediment on the updrift side, reducing the amount of sediment available to areas downshore, which can lead to increased erosion in those areas.

In Order to Preserve Their Beaches,cities Located Along a Coast