Which of the following defines a canyon?
the formation of a natural levee
the formation of a river with many bends
the formation of a fan-shaped structure as a river empties out into the sea
the valley between steep, rocky cliffs formed by downcutting.
Answer:
The valley between steep, rocky cliffs formed by downcuttin is the correct answer. Imagine the Grand Canyon. (Downcutting is a river eroding downward through its bed)