Question

(b) How do rivers form plains?​

Answer 1

National Geographic Society Many rivers run through valleys. As rivers move from side to side, they gradually erode the valley, creating broad plains. As a river floods, it overflows its bank. The flood carries mud, sand, and other sediment out over the land.

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Answer 2

Answer:

Most of the plains are formed by erosion,transportation and depositional activities of rivers.

Explanation:

Rivers erode the mountains while flowing through them.They transport the eroded sediments during their course and deposit these materials in valleys

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