find out about the theory of 'Continental Drift' and 'Plate Tectonics'.

Answer 1

http://www.google.com/search?q=continental+drift&oq=continental+drift&aqs=chrome..69i57j5j0l2.4028j0&sourceid=chrome&ie=UTF-8

http://www.google.com/#q=plate+tectonics

Read lots and take good notes. Let us know what you discover.