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It is assumed that this is based on a volume of ocean water 1,300,000,000 km3
or 310,000,000 cubic miles.
Wiki User
∙ 11y agoApproximately 3.5% of the Earth's oceans are made up of salt, with the most common salt being sodium chloride. This concentration has remained relatively constant over millions of years.
Maryam A
about 120 million tons
No, the oceans do not contain enough salt to cover all of the continents with a layer 50 feet thick. The average salt content in the oceans is about 3.5%, and there is not enough salt to form a layer that thick on the continents.
An equilibrium exist on long term.
Oceanography
About 97% of the Earth's water is salt water found in oceans and seas.
The moon has a greater effect than the sun on the earths oceans.
Approximately 70% of earths surface is covered by the oceans.
70% or 80% of water covers the earths surface
About 97% of the salt water are found on Earth. These are located in the oceans.
Mainly salt water, excluding things like sea life.
oceans
97%
Salt is found in oceans and seas all over the world.it is commonly found in earths surface in very arid climates
oceans have salt water, no fresh water.
way to much to count
Changes in global sea levels can be caused by a variety of factors. These include thermal expansion of the ocean due to increased temperatures, melting of ice caps and glaciers, changes in ocean currents, and tectonic movements. Each of these contributes to the complex dynamics influencing sea level change.
Roughly 75% of Earths Surface is covered by water. (including the Oceans, lakes and land Ice).
Approximately 71% of the Earth is covered by oceans.