Multiple choice

The average salinity of the ocean water is-

  1. 2.5%

  2. 3.0%

  3. 3.5%

  4. 4.0%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The average salinity of ocean water is approximately 35 parts per thousand, which is equivalent to 3.5 percent. This means that for every 1,000 grams of seawater, there are about 35 grams of dissolved salts. Salinity can vary slightly depending on evaporation rates and freshwater input from rivers.

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