GENERAL GEOLOGY

GEOLOGY

GEOMORPHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As a river goes around a bend, most of the water is pushed towards the ____
A
Inside
B
Outside
C
Bottom
D
Top
Explanation: 

Detailed explanation-1: -As a river goes around a bend, most of the water is pushed towards the outside. This causes increased speed due to less friction and therefore increased erosion (through hydraulic action and abrasion ). The lateral erosion on the outside bend causes undercutting of the river bank to form a river cliff .

Detailed explanation-2: -Erosion on the outside of the bend is caused by the fastest flowing water hitting it. This creates a river cliff. Deposition occurs on the inside of the bend due to the water being forced to slow down. This creates a slip off slope.

Detailed explanation-3: -A meander is when water flows in a curvy, bendy path, like a snake. As a river makes its way through an area that is relatively flat, it often develops bends as it erodes its way through the path of least resistance. Once a meander starts, it often becomes more and more exaggerated.

Detailed explanation-4: -The force of the water erodes and undercuts the river bank on the outside of the bend where water flow has most energy due to decreased friction. This will form a river cliff. On the inside of the bend, where the river flow is slower, material is deposited, as there is more friction. This will form a slip-off slope .

Detailed explanation-5: -Due to the slope of the channel, erosion is more effective on the downstream side of a meander.

There is 1 question to complete.