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Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
The average salinity of Earth's oceans is about 35 grams of salt per kilogram of seawater (3.5% salt). [204] Most of this salt was released from volcanic activity or extracted from cool igneous rocks. [ 205 ]
Approximately 71% of Earth's surface, an area of some 361 million square kilometres (139.5 million square miles), is covered by ocean. The average salinity of Earth's oceans is about 35 grams of salt per kilogram of sea water (3.5%). [10]
The abundance of elements in Earth's crust is shown in tabulated form with the estimated crustal abundance for each chemical element shown as mg/kg, or parts per million (ppm) by mass (10,000 ppm = 1%).
Approximately 71% of Earth's surface, an area of some 361 million square kilometres (139.5 million square miles), is covered by ocean. The average salinity of Earth's oceans is about 35 grams of salt per kilogram of sea water (3.5%). [99]
Sea Salt. Derived from evaporated seawater, sea salt comes in many varieties and origins. The most common are Celtic sea salt, Fleur de Sel from the French sea, and Hawaiian sea salt.
Iodine aside, table salt, kosher salt, sea salt and Himalayan pink salt are all pretty much the same in terms of nutrition, she adds. Pink salt has trace minerals, but those amounts are miniscule.
This is a list of bodies of water by salinity that is limited to natural bodies of water that have a stable salinity above 0.05%, at or below which water is considered fresh.