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Defining the limits of the world oceans is difficult. There is no
beginning and no end. The south Atlantic connects with the south Pacific
in the southern part of South America. The Antarctica Ocean circulates
through all the larger body of oceans. The oceans are in fact, connected
and communicate with each other. Water can virtually travel around the
world as it moves from one area to another.
An ocean refers to the largest body of water. We generally
think of three major oceans including the Pacific, Atlantic and Indian
Ocean. The Arctic Ocean has communication with the Atlantic and Pacific,
while the Antarctica Ocean touches all three.
Each of the oceans is subdivided into areas that have distinct
geologic or chemical areas and these are referred to as "a sea."
The Mediterranean Sea for instance is physically confined by land, with
only one outlet to the Atlantic Ocean. However, the Sargasso Sea in
the western part of the Atlantic, is an area that is defined by its
chemical make-up.
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Strait of Gibraltar, Atlantic Ocean
connection with Mediterranean Sea
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