What happens when magma convection currents move in opposite directions? overlying, adjacent plates collide violently. groundwater rises to the surface. new crust is formed along the boundary. oceanic plates slide beneath continental plates. overlying, adjacent plates are pulled apart.

The correct answer is option E, Overlying, adjacent plates are pulled apart.

The convection currents in the mantle move the tectonic plates continuously. The direction of movement of the tectonic plates depend on the direction of the movement of the convection currents.  Every year the tectonic plates move in opposite  direction by 2-3 cm.  The convection current are just like conveyor belt below the molten rock in the mantle.

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