How are natural levees formed?
A) Bedload rises up over river banks during high floods.
B) Suspended load is deposited when the river covers the floodplain.
C) Minerals precipitate at the sides of rivers when the water is at bankfull level.
D) Cementing action occurs at the sides of streams as a result of the high velocity of the water.

Question

Quizplus · Accepted Answer

Natural levees are formed when suspended load (sediment) is deposited on the river banks during floods. As the water spreads over the floodplain, its velocity decreases, causing the sediment it carries to settle out and gradually build up the banks.

How Are Natural Levees Formed