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

question 23

Multiple Choice

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 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.

---

Definitions:

Computerised Tomography

A diagnostic imaging technique that uses computer-processed combinations of multiple X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object.

Magnetic Resonance Imaging

A non-invasive imaging technology that produces detailed images of the body’s internal structures using a large magnet, radio waves, and a computer.

Electrographic Tomography

A brain imaging technique that measures electrical activity on the scalp and generates images of the brain's electrical activity.

Electric Current

Electric current is the flow of electric charge, carried by electrons moving through a conductor.