Why Do Meandering Rivers Meander (Move) Across Their Floodplain

question 43

Multiple Choice

Why do meandering rivers meander (move) across their floodplain?

• A)The large amounts of sediments that choke the rivers create point bars that are easily eroded away by additional flow of the rivers.
• B)They carry very small amounts of sediment and thus are not slowed down as a result of friction between the sediment and the river bottom.
• C)They are curved, which causes erosion on one side of the curve and deposition on the other side of the curve, thus moving the river in the direction of erosion.
• D)Sediment is constantly being deposited on the river bottom, which causes the river to overflow its banks and create a new channel.

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