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The sea is the interconnected system of all the Earth's oceanic waters, including the Atlantic, Pacific, Indian, Southern and Arctic Oceans. [1] However, the word "sea" can also be used for many specific, much smaller bodies of seawater, such as the North Sea or the Red Sea.
Oct 19, 2023 · World's Seas. People often use the term “sea” to refer to the ocean. To geographers, a sea is a division of the ocean that is enclosed or partly enclosed by land.
Jun 14, 2024 · Ocean, continuous body of salt water held in enormous basins on Earth’s surface. There is one ‘world ocean,’ but researchers often separate it into the Pacific, Atlantic, Indian, Southern, and Arctic oceans. Covering nearly 71 percent of Earth’s surface, the oceans have an average depth of 3,688 metres (12,100 feet).
1 Shore length is not a well-defined measure. The ocean is the body of salt water that covers approx. 70.8% of Earth. [8] In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. [9]
Oct 19, 2023 · Sea. The “seven seas” has been used to describe the world’s great water bodies for a long time. But there are actually about 50 water formations that can be called a “sea,” and they are quite diverse when it comes to their size, location, and ecosystems.
Jul 11, 2024 · Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases. Seawater constitutes a rich source of various commercially important chemical elements.
Mar 5, 2024 · All About the Ocean. The ocean covers 70 percent of Earth's surface. Grades. 9 - 12+. Subjects. Biology, Earth Science, Oceanography, Geography, Physical Geography. Photograph. Cast-Net Fishing. A Hawaiian fisherman uses a cast net. A cast net is usually small enough to be operated by one person.
Many parts of the oceans are much deeper, however, and beyond anything at normal human scales; they are so deep that comparing them with the heights of some of the world’s greatest human structures and largest well-known points of interest on Earth makes them only slightly more fathomable.
For some ocean creatures, creating light is a matter of life and death. Learn about how light is used in the ocean.
A sea, however, is a small area of an ocean, usually with land on several sides. The Mediterranean, nestled between Africa and Europe, the Baltic in northern and central Europe, and the Caribbean...
