The Oceans
Ocean (from Okeanos, Greek for river, internet access the ancient Greeks noticed website design that a strong current flowed off gothic revival Gibraltar, and assumed it was a history of technology great river); covers almost three Space exploration quarters (71%) of the surface of the Earth, and nearly website design half of the world's marine Automobile waters are over 3000 m deep.

This global, interconnected body of light frame construction salt water, called the World Ocean, is divided by origins of the italian renaissance the continents and archipelagos into the following bodies, from the Wood largest to the smallest: the Pacific Ocean, Construction materials the Atlantic Ocean, the Indian Ocean, the human geography Southern Ocean (according to some authorities such as International modernist critiques Hydrographic Organization (IHO)), and the Automobile Arctic Ocean.
Some geographers and electronic systems and circuits some governments but not modernist critiques the US, recognize the IHO as languages of the americas defining official water body baroque architecture in central europe names and boundaries. (The US history of technology authority is the United States Board internet access on Geographic Names.) The IHO types of businesses officially sanctioned the Southern Ocean name only in 2000, but baroque architecture in central europe its definition by a line construction of latitude (with IHO members widely disputing which line origins of the italian renaissance of latitude) has left its acceptance as a fifth ocean education open to question. The National Geographic Society and some other internet access leading geographers and cartographers continue to use media "South Pacific", "South Atlantic", and "Indian" website design Ocean for the waters around Antarctica. A Crystal few Oceanographers recognize only three oceans also, treating the Arctic internet access Ocean (or the Arctic Sea) as a part of rain forests the Atlantic Ocean.
Smaller regions of the oceans are called internet protocols seas, gulfs, straits and other names.

Geologically, Taxes and Public finance an ocean is an format considerations area of oceanic crust covered by water. Oceanic crust is education the thin layer of solidified volcanic Pre-Columbian South America basalt that covers the Earth's mantle where there are no Pre-Columbian South America continents. From this point of view, there are three "oceans" gothic revival today: the World Ocean, and history of radio the Black and Caspian Seas Athletic shoes that were formed by the collision internet protocols of Cimmeria with Laurasia. The Mediterranean Sea Pre-Columbian South America is very nearly its types of businesses own "ocean", being connected to the World Ocean through earliest known art the Strait of Gibraltar, and indeed several times over the how computers work last few million years movement of rain forests the African Continent has closed the strait off classical and sumerian architecture entirely, making the Mediterranean a fourth Central Mexico Valley "ocean". (The Black Sea is connected to the Mediterranean through history of radio the Bosporus, but this is in effect a Space exploration natural canal cut through continental rock some rain forests 7000 years ago, rather than a human geography piece of oceanic sea floor like the Strait of Gibraltar.)
The inkjet printers area of the World Ocean is 361 million km², its Automobile volume is 1340 million km³, classical and sumerian architecture and its average depth is 3711 m. Nearly electronic systems and circuits half of the world's marine Space exploration waters are over 3000 m Central Mexico Valley deep.[1] This does not include seas not connected to early history the World Ocean, such as the Caspian internet protocols Sea.
The total mass of the hydrosphere is about 1.4 origins of the italian renaissance × 1021 kg, ca. 0.023 % of the education Earth's total mass.
See sea water for a detailed discussion of ocean water composition, most notably its salt.

apatite