Sometimes tectonic forces cause cracks to form in rock. if pieces of the rock move along these cracks, the cracks are called faults. scientists use the term faulting to refer to the formation of faults. depending on the situation, faulting can act as a constructive or a destructive force. which of the following best shows how faulting can act as a constructive force? a. rocks are worn down as they grind past each other along a fault. b. rock moves sideways along a fault with no change in elevation. c. faulting produces an earthquake that causes a local bridge to collapse. d. rock moves upward along faults to form a mountain range.