ANSWER:
The fault is found by the geologist who was noticing that the land on 'one side of a break' in the crust is 'slightly higher' than the other side.
EXPLANATION:
- In the given question or the scenario, it has been described about how the breaking has occurred and how it has been surrounded by the fault boundary.
- Due to the fault found in the boundary, it can be observed that the crust is not seen in a same level as one is slightly 'higher' than the other.
