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Answer: The two events that result from shear acting on Earth's crust are:
- A. Reverse faulting and
- B. Transform faulting.
Reverse faulting occurs when two blocks of rock are pushed together by horizontal compression, causing one block to move up and over the other block, resulting in a reverse fault. This type of faulting is caused by shear stress acting on the Earth's crust.
Transform faulting occurs when two blocks of rock slide past each other horizontally along a fault plane. This type of faulting is also caused by shear stress acting on the Earth's crust.
Horizontal and vertical forces can also result from shear acting on Earth's crust, but they do not necessarily result in reverse or transform faulting. Horizontal forces can lead to folding and faulting, while vertical forces can lead to uplift and subsidence.
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