If a stream-cut canyon is deep and narrow, which of the following is most likely to be true?
A) rocks in the canyon walls are relatively hard and so easy to erode
B) the stream is probably close to its base level
C) downcutting is occurring faster than widening
D) the stream contains mostly small clasts, such as silt

Question

Quizplus · Accepted Answer

Downcutting occurs faster than widening in the formation of a deep and narrow canyon, indicating that the stream is eroding its bed more quickly than it is eroding its banks. This process leads to the characteristic steep and narrow walls of a stream-cut canyon.

If a Stream-Cut Canyon Is Deep and Narrow, Which of the Following