Question

what are plains? Explain the formation and importance of alluvial plains​

Answer 1

Answer:

In geography, a plain is a flat expanse of land that generally does not change much in elevation. Plains occur as lowlands along valleys or on the doorsteps of mountains, as coastal plains, and as plateaus or uplands.

An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms. As the highlands erode due to weathering and water flow, the sediment from the hills is transported to the lower plain.

Explanation:

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