Question
what could be the cause of continental drift?
Answers
Ms. Sue
http://sci.waikato.ac.nz/evolution/PlateTectonics.shtml
http://geophysics.suite101.com/article.cfm/understand_plate_tectonics_continental_drift
http://geophysics.suite101.com/article.cfm/understand_plate_tectonics_continental_drift