Across
- 3. Boundary When two tectonic plates come together
- 4. plate movement is caused by convection currents
- 5. earth crust into the mantle beneath another plate
- 7. long narrow depressions on sea floor
- 8. mostly solid layer, between earth core and the crust
- 9. valley it occurs at divergent boundaries
Down
- 1. Boundary When two plates move away from each other
- 2. Boundary
- 6. currents a current caused by convection