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Plate Tectonics
Question | Answer |
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Asthenosphere | the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur. |
Continental Drift | the gradual movement of the continents across the earth's surface through geological time. |
Lithosphere | the rigid outer part of the earth, consisting of the crust and upper mantle. |
Pangaea | a hypothetical supercontinent that included all current land masses, believed to have been in existence before the continents broke apart during the Triassic and Jurassic Periods. |
Plate | thin, flat sheet or strip of metal or other material, typically one used to join or strengthen things or forming part of a machine. |