Deltas form as
A)periodic flooding clogs stream channels.
B)erosion clogs stream channels.
C)stream gradient decreases.
D)streams enter a standing body of water.

Question

Quizplus · Accepted Answer

Deltas form when streams enter a standing body of water, such as an ocean or a lake. As the water slows down and loses energy, it deposits sediment and builds up a delta over time. A periodic flooding or erosion of stream channels may contribute to the amount of sediment delivered to the delta, but it is not the primary cause of delta formation. Stream gradient decreasing may lead to a reduction in erosion and transport capacity of the stream, which could contribute to delta formation, but it is not as direct a cause as streams entering a standing body of water.

Deltas Form as