Which of the following terms applies to hydrogen sulfide

A) compound

B) macromolecule

C) organelle

D) atom

Hydrogen Sulfide (H2S) Hydrogen sulfide is a colorless, flammable, extremely hazardous gas with a "rotten egg" smell. It occurs naturally in crude petroleum and natural gas, and can be produced by the breakdown of organic matter and human / animal wastes (e. g., sewage).

so a