Marine

1. layer of silicate rock between the crust and the outer core
3. theory that considers the Earth's lithosphere to comprise a number of large tectonic plates
7. a long narrow ditch
9. linear feature that exists between two tectonic plates that are moving away from each other
10. drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle
11. shaking of the surface of the Earth resulting from a sudden release of energy
12. hypothesis that the Earth's continents have moved over geologic time
13. the property of having poles or being polar
16. very hot, very dense center of our planet
18. fissure on the seafloor from which geothermally heated water discharges
20. fault along a plate boundary where the motion is horizontal
22. outermost solid shell of a rocky planet
23. relating to earthquakes or other vibrations of the earth

2. the rigid outer part of the earth, consisting of the crust and upper mantle
4. an area on Earth where two or more lithospheric plates collide
5. geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries
6. outermost layer of Earth's lithosphere that is found under the oceans
8. result of reversals of the Earth's field and seafloor spreading
14. rupture in the crust of a planetary-mass object
15. seafloor mountain system formed by plate tectonics
17. outermost layer of Earth's lithosphere
19. series of waves in a water body caused by the displacement of a large volume of water
21. flat region of the ocean floor