What is the average ocean salinity?

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Multiple Choice

What is the average ocean salinity?

Explanation:
Salinity is the amount of dissolved salts in seawater. On average, ocean water contains about 3.5% salt by mass, which is equivalent to roughly 35 grams of salt per kilogram of seawater (35 parts per thousand). This standard value reflects the typical composition of seawater, with regional variations being small around this level. So the best answer is 3.5%.

Salinity is the amount of dissolved salts in seawater. On average, ocean water contains about 3.5% salt by mass, which is equivalent to roughly 35 grams of salt per kilogram of seawater (35 parts per thousand). This standard value reflects the typical composition of seawater, with regional variations being small around this level. So the best answer is 3.5%.

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