The name 'Ocean' originates from the English word for a large body of water, which is ultimately derived from the Greek word 'Ὠκεανός' (Okeanos). In Greek mythology, Okeanos was the name of the body of water believed to encircle the Earth. The term 'ocean' in modern usage refers to the vast body of salt water that covers approximately 70.8% of the Earth's surface, divided into five major areas: the Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic Oceans. The ocean is a critical componen...