section_path: Geography
section_name: Geography
paragraph_text: Geography
  
  The entire ocean, containing 97% of Earth's water, spans 70.8% of Earth 's surface, making it Earth's global ocean or world ocean. This makes Earth, along with its vibrant hydrosphere a "water world" or " ocean world ", particularly in Earth's early history when the ocean is thought to have possibly covered Earth completely. The ocean's shape is irregular, unevenly dominating the Earth's surface. This leads to the distinction of the Earth's surface into a water and land hemisphere, as well as the division of the ocean into different oceans.
  
  Seawater covers about 361,000,000 km (139,000,000 sq mi) and the ocean's furthest pole of inaccessibility, known as " Point Nemo ", in a region known as spacecraft cemetery of the South Pacific Ocean, at 48°52.6′S 123°23.6′W / 48.8767°S 123.3933°W. This point is roughly 2,688 km (1,670 mi) from the nearest land.