Question 20
Rivers and River LandformsWhich of the following are circular depressions formed on the bed of a river in its upper course by pebbles carried by the river?
- A.Potholes.
- B.Plunge pools.
- C.Gorges.
- D.Rapids.
Show the answer and explanation
Answer: A (Potholes.)
Explanation
Pebbles swirled round by eddies drill round holes in the river bed: potholes.