Natural Processes that might cause the motion of Earth's plate?

Answer 1

Giant under-crust lava turtles.

Answer 2

All the plate are in constant motion, evethough it maybe just millimeters a year. If the Earth was scaled to the side of an apple, the crust would be the skin. The crust is sitting on top of the mantle a layer that is mostly solid but is constantly moving with convection. So the crust, in a way, just sits ontop of the mantle and floats.
A good example is cooking a can of Cambells tomato soup (with milk) and cook it. After it sits for a couple hours it will develop a skin. Turn on the heat and the skin will start to break up and move, just like the crust is doing today.

Answer 3

This is a very good question and maybe no one knows the answer. It must be energy from within the Earth itself that causes this motion. Heat generated within could cause it. But then you need to explain how the heat is generated. Do you know how much energy is needed to cause the motion? If you knew that it would at least quantify the problem.

Answer 4

Warming something up will cause its atoms to move. So volcanoes, not earthquakes since they are caused by earth's plates, global warming yes, and the constant need for the earth to move even if only a little.

Answer 5

heat from the core causes the magma beneath the plates to convect ( the warmer magma rises while the cooler magma sinks) like bubbles in a pot of boiling water. it causes a motion similar to a treadmill moving the continents

Answer 6

The flood of Noah that released the subterranian water probably creating the plates in the first place?

Answer 7

Are you referring to the techtonic plates? Its believed that convection currents of the molton interior carries the several plates around.

Answer 8

Radioactivity maybe?