Fact 1: Faulting of rock in Earth 's crust causes earthquakes.

Fact 2: Faults, cracks in the Earth's crust, produce earthquakes when they move or slip.

Given the two facts above, answer the question "What happens when faults move?" with the following options: 
- The crust falls apart
 - Dilution
 - Rocks break
 - scattered light
 - symptoms
 - Earthquakes
 - The ground closes
 - mechanical


 

      Earthquakes   