[[File:Continental_drift1.jpg|framed|center|Continental Drift <ref> http://media-1.web.britannica.com/eb-media/99/101699-004-066A8D00.jpg </ref>]] | [[File:Continental_drift1.jpg|framed|center|Continental Drift <ref> http://media-1.web.britannica.com/eb-media/99/101699-004-066A8D00.jpg </ref>]] |