Playa Novillero, Mexico Sign us up. This beach is 56 miles long, a third of a mile wide and water that's shallow enough that you can walk about 330 feet into the water. Ninety Mile Beach, New Zealand Unlike its neighbor to the west, this beach, on the North Island, is really only about 55 miles long.
World-systems theory. World-systems theory (also known as world-systems analysis or the world-systems perspective), is a multidisciplinary, macro-scale approach to world history and social change which emphasizes the world-system (and not nation states) as the primary (but not exclusive) unit of social analysis.
Earth system science aims to understand Earth as a system made up of. interacting parts, or subsystems. A system can be any size group of interacting parts that form a. complex whole. â¢ In a closed system, matter does not enter or leave the system. â¢ In an open system, energy and matter flow into and out of the system.