What is the average salinity of sea water?

What is the average salinity of sea water?

  1. A. 1.5%
  2. B. 3.5%
  3. C. 2.5%
  4. D. 2%

B. 3.5%
The salinity of the sea water means the presence of dissolved salts in the seawater. The average salinity of seawater is 35 ppt. / 3.5% .A simple way to determine the amount of salinity in seawater is to evaporate one kilogram of seawater and finally to weight the residue in grams.

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