4. The convergent boundary is marked a mid-oceanic ridge, that is, responsible for the seafloor spreading.

6. The first evidence of the Continental Drift Theory was the apparent fit of the two continents, Europe and Africa.

7. Subduction zones can located in the region of divergent boundary.

8. Glossopteris is a pre-historic freshwater reptile whose fossils were found in both South American and African continents.

9. Harry Hess was the geologist who introduced the concept of seafloor spreading.

10. The boundary that slides into each other is also known as the constructive boundary.

11. The sedimentary coal is one of the evidences to support the fourth evidence of the continental drift theory.

12. Oceanic to oceanic convergence is the type of convergent plate boundary where neither plate is pushed underneath the other.

13. The glacial scratch is an indication that a massive glacier moves from one place to the other.

14. San Francisco's Fault is one of the most active faults around the world.

15. The discovery of coal in cold regions and glacial evidences in warm regions led Wegener to formulate his fourth evidence which is Fossil Correlation.

16. The convection current underneath the Earth's crust is due to the difference of its velocity.

17. The divergent boundary is also known as conservative boundary since it creates new crust.

18. Tectonic plates are massive, irregular slab of solid rocks that envelope the surface of the Earth.

19. The convection current underneath the Earth's crust is described to be like a asteroid belt.

20. Convergent boundary is where a lot of earthquakes occur due to its side to side movement.