Final answer:
Normal and strike-slip faults generally occur at mid-ocean ridges.
Step-by-step explanation:
The two types of faults that generally occur at mid-ocean ridges are normal and strike-slip faults. Normal faults occur when the hanging wall moves down relative to the footwall, indicating extension and pulling apart of the Earth's crust. Strike-slip faults occur when the blocks on either side of the fault move horizontally past each other.