Question

1. How are flood plains formed?in two lines​

Answer 1

Answer:

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A floodplain is an area of land which is covered in water when a river bursts its banks. Floodplains form due to both erosion and deposition. Erosion removes any interlocking spurs , creating a wide, flat area on either side of the river.

Answer 2

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Flood plains are formed when a meander erodes side ways as it travels down stream. when a river breaks it's banks, it leaves behind layers of alluvium. These are gradually build up to create the floor of the plain.

More answers like this-

A floodplain is an area of land which is covered in water when a river bursts its banks. Floodplains form due to both erosion and deposition. Erosion removes any interlocking spurs , creating a wide, flat area on either side of the river.