EARTHSCIENCE PT#2

2. Considered as a small earthquake in underground caverns and mines that are caused by seismic waves produced from the explosion of rock on the surface.
3. Rocks change their shape and volume when they are subjected to.
6. Flat sediment that result in the spreading of the sea floor.
7. Is when the denser plate sinks, gravity pulls on the rest of the plate with a
9. The shaking is caused by movements in Earth’s outermost
10. These are depressions on the ocean floor.
15. It is the submerged volcanoes.
17. Where does the ridge push occur.
18. Which layer of the Earth has convection currents.
19. A fault rock which is cohesive with a poorly developed or absent planar fabric.
21. Is formed at the base of the continental rise about 4000 to 6000 meters deep.

1. Is a central valley formed at the summit of the oceanic ridges is the molten materials continuously flow out from the ridges.
4. It is a mountain or hill formed around a vent or opening in the Earth’s crust through which hot materials are expelled.
5. Is a fracture or zone of fractures between two blocks of rock.
8. A transform boundary connects two diverging boundaries.
11. Opposite of a convergent boundary.
12. Slab pull forces occur at which type of plate boundary.
13. Which boundary occurs when two plates move away.
14. Is the circulation of material caused by the differences in density.
16. Type of plate movement is in the San Andreas Fault.
20. Kind of plate boundary occurs in sea floor spreading.