2. the continents were once joined together in a single landmass, fossils matched on continents that fit together, and climates were similar.

3. the name of the supercontinent that existed millions of years ago

4. fossil

5. sonar

6. mid-ocean ridges

7. cool

8. Convections in the mantle

9. Plate tectonics

10. Transform boundary

11. Mountain range

12. Continental Drift

13. Sea-floor spreading

14. Deep ocean trench

15. plates

16. Rift valley

17. shrink

18. younger

19. Continental Drift

20. longest

21. Transform

22. There is no way to determine when stress along a fault will be released.

23. Divergent