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The ocean is a major driver of Earth's water cycle. Ocean water represents the largest body of water within the global water cycle (oceans contain 97% of Earth's water ). Evaporation from the ocean moves water into the atmosphere to later rain back down onto land and the ocean. [68]
Ocean – the four to seven largest named bodies of water in the World Ocean, all of which have "Ocean" in the name. See Borders of the oceans for details. Sea has several definitions: A division of an ocean, delineated by landforms, currents (e.g., Sargasso Sea), or specific latitude or longitude boundaries. This includes but is not limited to ...
The Four Seas ( Chinese: 四海; pinyin: Sìhǎi) were four bodies of water that metaphorically made up the boundaries of ancient China. There is a sea for each for the four cardinal directions. The West Sea is Qinghai Lake, the East Sea is the East China Sea, the North Sea is Lake Baikal, and the South Sea is the South China Sea. [1]
The borders of the oceans are the limits of Earth 's oceanic waters. The definition and number of oceans can vary depending on the adopted criteria. The principal divisions (in descending order of area) of the five oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean.
Oceanography (from Ancient Greek ὠκεανός (ōkeanós) ' ocean ', and γραφή (graphḗ) ' writing '), also known as oceanology, sea science, ocean science, and marine science, is the scientific study of the oceans. It is an Earth science, which covers a wide range of topics, including ecosystem dynamics; ocean currents, waves, and ...
Ringwoodite is the major phase at the Earth's mantle between ~520 and ~660 km depth, possibly containing several weight percent of water in its crystal structure. The lower mantle of inner earth may hold as much as 5 times more water than all surface water combined (all oceans, all lakes, all rivers).
The Atlantic Ocean consists of four major, upper water masses with distinct temperature and salinity. The Atlantic subarctic upper water in the northernmost North Atlantic is the source for subarctic intermediate water and North Atlantic intermediate water.
This is a list of archipelagos, organised by oceans then seas and finally arranged alphabetically. Geographically isolated islands are included as well. Geographically isolated islands are included as well.