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.
This lent further support to A. Wegener's Continental Drift Theory. Earth's Plates: The Earth's crust is divided into huge, thick plates that drift atop the soft mantle. The plates are made of rock and are from 50 to 250 miles (80 to 400 km) thick. They move both horizontally and vertically.