In the Oceans, Sulfur Exists Primarily As

Question

In the oceans, sulfur exists primarily as
A) hydrogen sulfide (H₂S).
B) elemental sulfur (Sᵒ).
C) sulfate (SO₄²⁻).
D) gypsum (CaSO₄).

Accepted Answer

Sulfur in the oceans is predominantly found as sulfate (SO₄²⁻) ions, which are the result of oxidation of the sulfur-containing compound dimethyl sulfide (DMS) produced by marine organisms.