River Processes In The Middle Course

Question 1

What’s the formation of a meander?

Answer 1

1) initial straight channel
2) lateral erosion on the outer bank
3) deposition on the inner bank
4) meander growth

Question 2

What’s the formation of an ox bow lakes?

Answer 2

1) erosion makes the neck narrow
2) during floods river takes shortest course through neck
3) new straighter river course
4) cut off meander forms oxbow lake

Question 3

What is thalweg?

Answer 3

The fastest flow of the river

Question 4

What is the river like in the middle course

Answer 4

• wider and deeper
• gradient is gentler
• rivers discharge has increase as more tributaries add to it
• velocity increases
• river erodes naturally