Question

How are flood plains formed

Answer 1

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Answer-
rivers in their lower course carry huge quantities of fine soils and other materials called sediments. during the floods , these sediments are spread over the adjacent areas. a layer of sediments deposited in the plains areas form a flat fertile floodplains. this is how floodplain are formed

Answer 2

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Flood plains are made by a meander eroding sideways as it travels downstream. When a river breaks its banks and floods, it leaves behind layers of alluvium (silt). These gradually build up to create the floor of the flood plain.