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plate
sea floor spreading
| Question | Answer |
|---|---|
| what is the name of the super coninent? | pangaea |
| the process that constantly adds new material to the ocean floor. | seafloor spreading |
| circulating heat currents in the mantle that cause the plates to move. | convestion |
| where is the earth's crust thinnest? | oceans |
| what is the continental crust mostly made of? | the rock granite |
| what is the earths lithosphere broken into? | plates |