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plate Tectonics
Semester exam
| Question | Answer |
|---|---|
| Pangaea | all the continents were once part of a supercontinent |
| Continental Drift | suggested that continents are in constant motion on the surface earth |
| Mid ocean Ridge | The mountain ranges in the middle of the oceans |
| Seafloor spreading | the process by which new oceanic crust forms along a mid ocean ridge and older oceanic crust moves away from the ridge |
| plate tectonics | earths surfaces made of ridge slabs of rock or plates that move with respect to each other |
| lithosphere | the cold and rigid outermost layer |
| divergent plate boundary | forms where two plates separate |
| transform plate boundary | forms where two plates slide past each other |
| convergent plate boundary | forms where two plates collide |
| subduction | the denser plate sinks below the more buoyant plate in a process |
| convention | the circulation of material caused by differences in temperature and density |