Multiple choice

Common salt is obtained from sea water by the process of

  1. sublimation

  2. evaporation

  3. crystallisation

  4. filtration

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Common salt (sodium chloride) is obtained from sea water by allowing the water to evaporate in large shallow pans, leaving the salt behind. Sublimation, crystallisation, and filtration are not the primary methods used for this large-scale extraction.