What is the major commercial source of elemental sulfur?

Name: What is the major commercial source of elemental sulfur?
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Quizplus · Accepted Answer

Underground deposits of elemental sulfur, primarily in the form of sulfur deposits formed by the evaporation of ancient inland seas, are the major commercial source of elemental sulfur. Sulfide minerals and sulfate minerals are not typically sources of elemental sulfur. Seawater and coal/petroleum could contain sulfur, but they are not a major commercial source of elemental sulfur.

What Is the Major Commercial Source of Elemental Sulfur