| A | B |
| compression | stress resulting from squeezing |
| isostasy | equilibrium between continental crust and the denser mantle below it |
| shear | stress resulting from parallel forces acting in opposite directions |
| strain | change in the shape of rock caused by stress |
| subsidence | downward vertical motion of Earth?s surface |
| tension | stress that pulls something apart |
| uplift | upward vertical motion of Earth's surface |
| fault zone | area of many fractured pieces of crust along a large fault |
| ocean trench | deep, underwater trough created by one plate subducting under another plate at a convergent plate boundary |
| transform fault | area where tectonic plates slide horizontally past each other |
| volcanic arc | curved line of volcanic islands that forms parallel to a plate boundary |
| fault-block mountain | parallel ridges that form where blocks of crust move up at faults |
| folded mountain | made of layers of rocks that are folded |
| uplifted mountain | forms when large regions rise vertically with very little deformation |
| basin | area of subsidence and region with low elevation |
| plains | extensive areas of level or rolling land |
| plateau | flat region with high elevation |