In Seawater, Sulfate Is the Most Common Anion After Chloride

question 1

Multiple Choice

In seawater, sulfate is the most common anion after chloride. The following is correct with respect to the use of oxidized sulfate by some bacterial groups:

• A) Oxidized sulfur molecules have potentials lower than those of the nitrogen series.
• B) Oxidized sulfur molecules such as sulfate and sulfite serve as electron acceptors.
• C) Sulfate and sulfite can receive electrons from hydrocarbons.
• D) Sulfate-reducing archaea and bacteria are widespread in the ocean.
• E) All of the above.

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