the largest ocean in the world, the largest ocean, lying west of the continents of North and South America, and east of the continents of Asia and Australia
the second largest ocean, lying west of the continents of Europe and Africa, and east of the continents of North and South America
This ocean, often not labled on maps, surrounds Antarctica and extends northward toward Australia, has the largest area of upwelling (nutrient rich waters circulating to the open surface), which stimulates growth of phytoplankton populations and increase primary production.
This ocean has extreme an northern Hemishere, topped with ice for most of the year, location of the mythic "Northwest Passage"
In water, a distinctive temperature transition zone that separates an upper layer that is mixed by wind (the epilimnion) and a colder, deep layer that is not mixed (the hypolimnion)
is the bottom layer that extends from the base of the thermocline to the bottom of the ocean
the angular distance between an imaginary line around a heavenly body parallel to its equator and the equator itself
deep- ocean basin
made up of oceanic crust. The boundary between deep ocean basin and continental margin lies under the continental rise