Many people use the terms "ocean" and "sea" interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography (the study of the Earth's surface).
Seas are smaller than oceans and are usually located where the land and ocean meet. Typically, seas are partially enclosed by land.
The Sargasso Sea is an exception. It is defined only by ocean currents.
Last updated: 01/20/23
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