________ are characteristics of downcutting streams and a youthful stage of valley evolution.
A)Rapids and whitewater
B)Wide floodplains
C)U-shaped, cross-valley profiles
D)Meandering channels and natural levees

Question

Quizplus · Accepted Answer

Downcutting streams are characterized by rapids and whitewater due to the steep gradient and high flow velocity. This is typical of a youthful stage of valley evolution, where erosion is focused on the stream channel rather than lateral erosion of the valley walls. Wide floodplains, U-shaped cross-valley profiles, meandering channels, and natural levees are more characteristic of a mature or old age stage of valley evolution.

________ Are Characteristics of Downcutting Streams and a Youthful Stage