Biology : PU-CET (U.G) 2015 Panjab University Entrance Exam With Answers

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24.

Soil Brought Along With River Water Is Called :

A: Aeolian
B: Colluvial
C: Glacial
D: Alluvial

The answer is: D

Explanation

Soil brought along with river water is called "Alluvial soil". Alluvial soil is formed by the deposition of sediment carried by rivers and streams, and it is often found in floodplains and deltas. It is typically composed of silt, sand, and clay, and it is rich in nutrients that make it well-suited for agriculture. Alluvial soils are also known for their high water-holding capacity, which makes them valuable for irrigation.

Aeolian soil, on the other hand, is soil that is formed by the deposition of sediment carried by wind. Colluvial soil is formed by the accumulation of material at the base of hills or slopes due to gravity. Glacial soil is formed by the movement of glaciers and is typically composed of rock fragments and fine sediment.