What portion of an angular, fracture-bounded granitic block shows the highest rate of weathering?
A)the unfractured interior
B)the exposed edges and corners
C)the crack surfaces not including edges and corners
D)the middle of faces bounded by a single large fracture

Question

Quizplus · Accepted Answer

The exposed edges and corners have the highest surface area to volume ratio and are therefore more prone to weathering than the other options. Additionally, the fractures create more surface area for chemical and physical weathering to occur, making the edges and corners even more vulnerable.

What Portion of an Angular, Fracture-Bounded Granitic Block Shows the Highest