Want this question answered?
the primary force that causes the seaffloor to spread and contienents to drift
Contintal plates
Geothermal Drift.
thermal convection
rising molten magma
In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.
no magma riseing thur gaps in plate causes them to move called seafloor spread
Convection currents
Radiologyinfotation
thermal convection is the primary force that cause the sea floor to spread
It would have to be continental drift because the plates are moving in the lithosphere causeing the magma to come up 7 killometers from the groundThe answer is simply Thermal convectionI dont know what it is but it is not that. I am doing a word cross puzzle and it says it is 17 lettersThe correct answer for your crossword puzzle is thermal convectionCheesecakeshes right:) the cheesecake person also doin a crossword puzzel
Originally conceived as "continental drift," the theory of plate tectonics explains the motion of Earth's landmasses. However, there is still much debate as to what drives this motion. Explanations include upper mantle convection currents, forces due to gravity, and the effect of the Earth's rotation.