Cabinets usually have one or more doors on the front, which are mounted with door hardware, and occasionally a lock. Many cabinets have doors and drawers or only drawers. Short cabinets often have a finished surface on top that can be used for display, or as a working surface, such as the countertops found in kitchens.
Plates at our planet s surface move because of the intense heat in the Earth s core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down.
The surface of the earth is broken into seven large, and many smaller, moving plates -- all of which ride on the asthenosphere. Each plate is approximately 50 miles thick and moves anywhere from 1/2 inch to several inches per year. As plates move, they collide or separate or move over one another.