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Earth's Surface
Question | Answer |
---|---|
The crust and the uppermost part of the mantle | Lithosphere |
The partially melted portion of the mantle below the lithosphere | Asthenospere |
Why the asthenosphere can bend | It is hotter than the lithosphere |
The number of large tectonic plates | About 15 |
What determines the type of boundary between plates | The relative motion of the plates |
Two plates move away from each other | Divergent boundry |
Two plates move toward each other | Convergent boundry |
A tectonic plate moves under another plate | Subduction |