Q63
The reason behind broadening the river valley is
A.
Corrosion
B.
Soil Erosion
AnswerC.
Attrition
D.
Hydraulic Action
Answer: Option B
Solution
Answer: Option B
Solution:
The reason behind broadening the river valley is soil erosion. As the river water comes in contact with soil and rocks on its banks, it weathers up the material & after sometime this weathered up material is eroded away by same river water. Hence river valley is broadened.