Question

where does shearing often occur?
along a normal fault
along a reverse fault
at a transform boundary
at a divergent boundary

Explanation:

Shearing occurs when two blocks of rock slide past each other horizontally. Transform boundaries are where two tectonic plates slide past one another. Normal faults are associated with tensional forces (divergent boundaries conceptually related to extension), reverse faults with compressional forces. Shearing is characteristic of transform boundaries.

Answer:

at a transform boundary