Floodplains are usually built
A) in the summer.
B) by bedload.
C) during channel avulsion.
D) at times of overbank flow.
E) by dissolved load.

Question

Quizplus · Accepted Answer

Floodplains are usually built during times of overbank flow when a river or stream overflows its banks and deposits sediment on the adjacent floodplain. This process of sediment deposition is known as alluviation, and it can occur during any season of the year. The other choices are not relevant to the formation of floodplains.

Floodplains Are Usually Built