Which of the following is not a major ocean on Earth?
Of the four major units that comprise the world ocean, three?the Atlantic, Indian, and Pacific oceans?extend northward from Antarctica as huge "gulfs" separating the continents. [ The fourth, the Arctic Ocean, nearly landlocked by Eurasia and North America and nearly circular in outline, caps the north polar region. The Antarctic Ocean (also called the Southern Ocean) is sometimes
considered a fifth, separate ocean, extending from the shores of Antarctica northward to about 40°S. The major oceans are further subdivided into smaller regions loosely called seas, gulfs, or bays. Some of these seas, such as the Sargasso Sea of the North Atlantic Ocean, are only vaguely defined, while others, such as the Mediterranean Sea or the Black Sea, are almost totally surrounded by land areas. Large and totally landlocked saltwater bodies such as the Caspian Sea are actually salt lakes.
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