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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. 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.
The terms "the ocean" or "the sea" used without specification refer to the interconnected body of salt water covering the majority of Earth's surface. It includes the Pacific, Atlantic, Indian, Southern/Antarctic, and Arctic oceans. As a general term, "the ocean" and "the sea" are often interchangeable.
Mar 5, 2024 · Melting glaciers and ice sheets contribute to sea level rise. Rising sea levels threaten coastal ecosystems and property. River deltas and estuaries are put at risk for flooding. Coasts are more likely to suffer erosion. Seawater more often contaminates sources of fresh water.
An interactive page that lets you scroll down the ocean. Visit the great depths of the Mariana Trench and discover all the sea creatures hidden beneath.
Bioluminescence Overview. For some ocean creatures, creating light is a matter of life and death. Learn about how light is used in the ocean. Read More.
Jun 16, 2024 · The Seven Seas include the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern oceans. The exact origin of the phrase 'Seven Seas' is uncertain, although there are references in ancient literature that date back thousands of years.
Oct 19, 2023 · 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.
Find out ten amazing ocean facts right here at National Geographic Kids, like where's the deepest point in the ocean? Which ocean is the biggest?
Caspian Sea, world’s largest inland body of water. It lies to the east of the Caucasus Mountains and to the west of the vast steppe of Central Asia. The sea’s name derives from the ancient Kaspi peoples,... Mediterranean Sea.
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).
