Multiple choice

What is the average salinity in ocean water?

  1. 3.5%

  2. 4.5%

  3. 8.5%

  4. 5.5%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The average salinity of ocean water is approximately 35 parts per thousand, which translates to 3.5 percent. This salinity is mainly due to dissolved salts, primarily sodium chloride. Salinity can vary depending on evaporation rates and freshwater influx from rivers.

Keep practicing — related questions