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