The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.
- A. 1 gram
- B. 10 grams
- C. 1 kg
- D. 10 kg
Explanation
Sea-water salinity is conventionally expressed as the mass of dissolved salts in one kilogram of seawater, commonly about 35 grams per kilogram. Strictly, salinity includes all dissolved salts, not only sodium chloride.
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