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.
Lithospheric plates move via the creation of new oceanic crust and the destruction of old oceanic crust at mid-ocean ridges and trenches respectively. The lithosphere is constructed of solid crustal rock and the solid upper mantle which floats on top of the plastic, semi-molten asthenosphere.