Which of the following statements concerning debris flows is not true?
A)Debris flows may be caused by heavy rains or melting snow.
B)In hilly areas, debris flows move down the canyons and stream valleys.
C)Debris flows deposit talus slopes.
D)Debris flows can move and carry very large boulders and other coarse debris.

Question

Quizplus · Accepted Answer

Debris flows do not deposit talus slopes, which are formed by rockfalls and landslides. Debris flows, on the other hand, deposit a mixture of rocks, soil, and other materials in the lower parts of valleys and canyons. Choices A, B, and D are all true statements about debris flows.

Which of the Following Statements Concerning Debris Flows Is Not