Seawater is a type of water that contains a high concentration of salt. It is found in oceans, seas, and other bodies of water that contain dissolved salts. The ocean is the largest source of seawater on Earth.
Seawater has many uses. It is used for transportation, recreation, agriculture, and industry. Seawater is also a valuable resource for science and research.
The composition of seawater varies depending on its location. Salinity, or the amount of salt in seawater, can range from 0 to over 35 parts per thousand (ppt). The average salinity of seawater is around 35 ppt. The temperature of seawater also varies depending on its location. Seawater near the poles is colder than seawater near the equator.
Seawater contains many different dissolved minerals and compounds. These include chloride, sulfate, magnesium, calcium, potassium, sodium, and bromide. Trace elements such as iron, manganese, copper, zinc, and lead are also present in small amounts.