Tectonic plate movements or plate shifting.
Geothermal Drift.
the primary force that causes the seaffloor to spread and contienents to drift
thermal convection
Contintal plates
In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.
Seafloor-spreading is the cause of continental drift
thermal convection
Seafloor spreading helped prove the theory of continental drift. Pangea theory also helped.
Radiologyinfotation
continental drift :D
thermal convection is the primary force that cause the sea floor to spread
Seafloor Spreading helped move the Continents to their current location.