Sea - Wikipedia
The sea commonly refers to the Ocean, the interconnected body of seawaters that spans most of Earth. Particular seas are either marginal seas, second-order sections of the oceanic sea (e.g. the Mediterranean Sea), or certain large, nearly landlocked bodies of water.
Sea Definition & Meaning - Merriam-Webster
The meaning of SEA is a great body of salt water that covers much of the earth; broadly : the waters of the earth as distinguished from the land and air. How to use sea in a sentence.
Ocean - Wikipedia
The ocean is the body of salt water that covers approximately 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]
Ocean | Definition, Distribution, Map, Formation, & Facts | Britannica
5 天之前 · An ocean is a continuous body of salt water that is contained in an enormous basin on Earth’s surface. The major oceans and their marginal seas cover nearly 71 percent of Earth’s surface, with an average depth of 3,688 metres (12,100 feet).
The Deep Sea - Smithsonian Ocean
Below the ocean’s surface is a mysterious world that accounts for over 95 percent of Earth’s living space—it could hide 20 Washington Monuments stacked on top of each other. But the deep sea remains largely unexplored. As you dive down through this vast living space you notice that light starts fading rapidly.
Seawater | Composition, Properties, Distribution, & Facts | Britannica
2024年9月13日 · Seawater, water that makes up the oceans and seas, covering more than 70 percent of Earth’s surface. 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.
Sea - National Geographic Society
2023年10月19日 · 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.
Oceans & Seas Portal | Britannica
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,...
Ocean Life - Smithsonian Ocean
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.
World's Seas - Education
2023年10月19日 · To geographers, a sea is a division of the ocean that is enclosed or partly enclosed by land. For this reason, all seas are saline, or salty.