Question

What is a fault?

A. the name for two opposing forces
B. a type of crust that moves under heavier crust
C. a crack in Earth's crust where movement occurs
D. a volcanic region where new material is being created

Answer 1

A fault is C, a crack in the Earth's crust where movement occurs.

e.g. In San Francisco, there is a large fault where the two pieces of crust rub against each other and causes earthquakes.

Answer 2

c, it is where the movement occurs