Seafloor spreading is a process that occurs at mid ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
The direction of the plate movement is moving outward.
Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface. The Earth's surface lithosphere, which rides atop the asthenosphere, is divided into a number of plates that are continuously being created and consumed at their opposite plate boundaries.
The direction of the plate movement is moving outward.
Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface. The Earth's surface lithosphere, which rides atop the asthenosphere, is divided into a number of plates that are continuously being created and consumed at their opposite plate boundaries.