Faulting of rock in Earth 's crust causes earthquakes, and earthquakes tremors both mild and moderate are frequent occurrences in the park and preserve. Given these facts, what causes tremors among the following options:
- thunder
 - Electrical energy
 - fire
 - faulting of rocks
 - sensory neurons
 - energy of moving objects
 - tornadoes
 - electromagnetic energy


 

    faulting of rocks     