Casement window, with latticed lights. A casement is a window that is attached to its frame by one or more hinges. Casement windows are hinged at the side. Windows hinged at the top are referred to as awning windows, and ones hinged at the bottom are called hoppers.
Open Systems. The ocean is an open system. The ocean is an example of an open system. The ocean is a component of the hydrosphere and the ocean surface represents the interface between the hydrosphere and the atmosphere that lies above. Solar radiation passes through the atmosphere and is absorbed by the ocean.
Southern Ocean. The Southern Ocean, also known as the Antarctic Ocean is an enormous body of water that surrounds the entire continent of Antarctica and reaches Australia and the southern end of South America. This ocean is a smaller body of water compared to the Pacific Ocean, Atlantic Ocean and Indian Ocean but is bigger than the Arctic Ocean.