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lessons 1-3
| Question | Answer |
|---|---|
| continental drift | the hypothesis that continents slow moving across the earth |
| pangaea | the name of the singel landmass thaat began to brake ofer 200b years a go |
| fossil | the preserved remains or traces of an organism that lived in the past |
| mid ocean ridge | an undersae mouten chean where new ocean foor is preduse |
| sea floor spreading | the process by which molten materials adds new oceanic crust |
| deep ocean trench | a deep valley along the ocean floor under the oceanic crust |
| subduction | the process by which the oceanic crust sinks under a deep ocean trench and back |
| plate | a secson of the lithosphere that slowly moves the atmosplere |
| divergent boundary | a plate boundary where two plates move away from each other |
| convergent boundary | a plate boundary where two plates move toward each other |
| transform boundary | a plate boundery where 2 plates move past each other |
| plat tectonics | the theroy that peses earths lithisphere are in mosen |
| fault | a brake in earths crust |
| rift valley | a deep valley that forms where two plates move a part |
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user-1975225