Question

Study figure 8 which shows part of a meandering river. Which of the following diagrams best shows the river's cross - section at A - B of Figure 8. Tick one box only.

Answer 1

The first box

Explanation:

The velocity structure of a stream flowing over low gradients with easily eroded banks will erode straight channels into meandering channels.

Erosion -  outer meander bends where the velocity is high.

Sediment deposition - the inner meander bends where the velocity is low forms exposed bars called point bars.

When meandering streams erode continuously on the outer meander bends and depositing sediment along the inner meander bends, it leads to migration across their flood plain backward and onward.