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Chapter 4 Lesson 1
Term | Definition |
---|---|
asthenosphere | partially melted portion of the mantle below the lithosphere |
convection | circulation within fluids ,caused by differences in density and thermal energy |
convergent boundary | where two plates move towards each other |
divergent boundary | where two plates move away from each other |
lithosphere | crust and uppermost part of the mantle |
plate tectonics | theory that states that earth's surface is broken into large, rigid pieces that move with respect to each other |
subduction | process that occurs when one tectonic plate moves under another tectonic plate |
transform boundary | where two tectonic plates slide past each other |