Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.
Crust:outer silicate solid crust
mantle:highly viscous
core:solid inner core
Answer:
Slab pull is that part of the motion of a tectonic plate caused by its subduction. ... Plate motion is partly driven by the weight of cold, dense plates sinking into the mantle at oceanic trenches. This force and slab suction account for almost all of the force driving plate tectonics.
The answer is C. California sits on top of two of Earth's major tectonic plates... meaning that it is very likely for earthquakes to happen