Seawater | Composition, Properties, Distribution, & Facts
5 days ago · 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.
How much water is in the ocean? - NOAA's National Ocean Service
Jun 16, 2024 · The ocean covers more than 70 percent of the surface of our planet. It's hard to imagine, but about 97 percent of the Earth's water can be found in our ocean. Of the tiny percentage that's not in the ocean, about two percent is frozen up in glaciers and ice caps.
Seawater - Wikipedia
Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na+. ) ions).
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]
Marine ecosystem - Salinity, Temperature, Oxygen | Britannica
4 days ago · Marine ecosystem - Salinity, Temperature, Oxygen: The physical and chemical properties of seawater vary according to latitude, depth, nearness to land, and input of fresh water. Approximately 3.5 percent of seawater is composed of dissolved compounds, while the other 96.5 percent is pure water.
Ocean | Definition, Distribution, Map, Formation, & Facts
Nov 3, 2024 · 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).
Sea Water - National Oceanic and Atmospheric Administration
Mar 28, 2023 · Sea Water. One of the most well known qualities of the ocean is that it is salty. The two most common elements in sea water, after oxygen and hydrogen, are sodium and chloride. Sodium and chloride combine to form what we know as table salt.
Oceans—facts and information - National Geographic
Mar 21, 2019 · 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. Humans depend...
Oceans and Seas and the Water Cycle | U.S. Geological Survey - USGS.gov
Jun 8, 2018 · The oceans are, by far, the largest storehouse of water on earth — over 96% of all of Earth's water exists in the oceans. Not only do the oceans provide evaporated water to the water cycle, they also allow water to move all around the globe as ocean currents.
9.2.1: Properties of Seawater - Geosciences LibreTexts
Jul 10, 2023 · Properties of Seawater. Seawater is the most abundant resource on Earth! Seawater has evolved to what it is over the billions of years that oceans have existed on Earth. This chapter examines the physical and chemical properties of water and seawater.