
Ocean - Wikipedia
The ocean is the body of salt water that covers approximately 70.8% of Earth. [8] The ocean is conventionally divided into large bodies of water, which are also referred to as oceans (the Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic Ocean) [9] [10], [11] and are themselves mostly divided into seas, gulfs and subsequent bodies of water.
All About the Ocean - National Geographic Society
2024年12月9日 · Although the ocean is one continuous body of water, oceanographers have divided it into five principal areas: the Pacific, Atlantic, Indian, Arctic, and Southern Oceans. The Atlantic, Indian, and Pacific Oceans merge into icy waters around Antarctica. The ocean plays a vital role in climate and weather.
Ocean | Definition, Distribution, Map, Formation, & Facts | Britannica
2025年3月20日 · 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).
How Many Oceans Are There In The World? - WorldAtlas
2025年2月19日 · For much of recorded history, Earth was said to have four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, many countries—including the United States —now recognize the Southern (Antarctic) Ocean as the fifth.
What's the difference between an ocean and a sea? - NOAA's …
2024年6月16日 · 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.
Ocean - Education | National Geographic Society
2024年9月18日 · The ocean is a huge body of saltwater that covers about 71 percent of Earth’s surface. The planet has one global ocean, though oceanographers and the countries of the world have traditionally divided it into five distinct regions: …
Oceans—facts and information - National Geographic
2019年3月21日 · The ocean is a continuous body of salt water that covers more than 70 percent of the Earth's surface. Ocean currents govern the world's weather and churn a kaleidoscope of life.
Oceans 101 | National Geographic - YouTube
Oceans serve as the planet’s largest habitat and also help to regulate the global climate. But why is the ocean salty? And how is climate change impacting the ocean? Find out more...
Geography and Facts About the World's 5 Oceans - ThoughtCo
2019年6月28日 · The world's five oceans contain 97 percent of the planet's water supply. Together, they combine to form the "world ocean."
sea和ocean有什么区别?? - 知乎
2019年10月26日 · 但是sea和ocean的确有区别可以辨析。 楼上答主说,sea是岸边的,ocean是没有岸相邻的,是部分正确的,不全对。 比如《蓝色星球》 (如果我没记错的话) 有一集提到了“公海”——The high sea,用词就是sea。 在表示海洋的时候,包含两个重要含义: 1、泛指所有海洋。 2、特指一片比ocean小的海洋。 显然,当指代“公海”的时候,在语义上属于第一种情况,泛指那些没有所属国的海洋。 •The refugees were at sea (= in a boat on the sea a long way from land) …
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