Question : The widening of a river valley takes place due to
Option 1: corrosion
Option 2: lateral erosion
Option 3: Adhesion
Option 4: hydraulic action
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Correct Answer: lateral erosion
Solution : The correct answer is lateral erosion.
Lateral erosion, occurring in the middle and lower river stages, widens the river by eroding its banks when the flow exceeds capacity. When the river surpasses its carrying capacity and flows at a speed exceeding the natural erosion rate, it tends to erode its banks, thereby expanding horizontally or widening the river. Increased speed leads to horizontal expansion. Meanwhile, vertical erosion deepens the river.
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Question : Rift Valley is formed,
Option 1: between two anticlines
Option 2: between two faults
Option 3: erosion of the synclinal basin
Option 4: due to volcanic eruption
Question : The deterioration of a metal by an electrochemical process is commonly termed as
Option 1: Erosion
Option 2: Corrosion
Option 3: Passivation
Option 4: Abrasion
Question : Which river from the following flows through a rift valley?
Option 1: Tapi
Option 2: Brahmaputra
Option 3: Sabarmati
Option 4: Ganga
Question : The river which has a greater flow of water than any other river in the world is?
Option 1: river Hwang-ho
Option 2: river Amazon
Option 3: river Zaire
Option 4: river Nile
Question : Dhimsa folk dance is performed by the tribes of:
Option 1: Solan Valley
Option 2: Araku Valley
Option 3: Ketti Valley
Option 4: Parvati Valley
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