Question

Why is alluvial soil found in plains around rivers

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Answer 1

These soils are formed by the sediments brought down by rivers. The rivers deposit very fine particles of soil called alluvium in their plains during the course of their long journey.

Answer 2

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The alluvial soil is found in plains around rivers because the alluvial soil is form from the deposits by the river. It is rich in nutrients and for the growth of crops too. The particles get deposited by the rivers. The deposits make the area plain and fertile too. Yet it is impossible if there where no rivers. So, alluvial soil is found on plains around rivers.

The best example of it is the Northern Plain of India. It was formed by the fillings of a large depression lying at the foothills of the Himalayas by sediments over millions of years.