Sulfur Cycle

Question 1

step 1

Answer 1

Mineralization of organic sulfur into inorganic forms, such as hydrogen sulfide (H2S), elemental sulfur, as well as sulfide minerals

Question 2

step 2

Answer 2

Oxidation of hydrogen sulfide, sulfide, and elemental sulfur (S) to sulfate (SO42−).

Question 3

step 3

Answer 3

Reduction of sulfate to sulfide

Question 4

step 4

Answer 4

Incorporation of sulfide into organic compounds (including metal-containing derivatives)