Rockfalls are MOST facilitated by
A) burrowing animals.
B) frost wedging and thermal expansion.
C) oxidation.
D) soil creep.
E) carbonation.

Question

Quizplus · Accepted Answer

Rockfalls occur due to the breakdown of rocks which can be facilitated by various processes. Frost wedging and thermal expansion are the most common processes that affect rockfalls. When water freezes in rock cracks, the expansion of the ice can weaken the rock over time, making it more prone to breaking off and falling. Similarly, changes in temperature can cause rocks to expand and contract, leading to cracks and ultimately rockfalls. Burrowing animals, soil creep, oxidation, and carbonation can all affect the strength of rock, but are less likely to directly cause a rockfall.

Rockfalls Are MOST Facilitated by