What two forces influence the movement of earth’s plates?

A.
magnetism and convection

B.
convection and gravity

C.
fluids and temperature

D.
gravity and solar heat

Question

What two forces influence the movement of earth’s plates?
 
 A.
magnetism and convection
 
 B.
convection and gravity
 
 C.
fluids and temperature
 
 D.
gravity and solar heat

anonymous · Answer

B

koikkara · Answer

@Prerana1087 I would say C ! Can you prove you are right ?

universetoast · Answer

And I'm wrong. This website explains how answer "C" is correct : http://www.windows2universe.org/earth/interior/how_plates_move.html

anonymous · Answer

Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones