Some germs and archaea use hydrogen sulfide instead of drinking water because the electron donor in chemosynthesis, a process just like photosynthesis that creates sugars and takes advantage of oxygen as the electron acceptor. Sulfur-centered chemosynthesis may very well be simplifiedly compared with photosynthesis: Amorphous or "plastic" sulfur is produced https://holdenoimse.get-blogging.com/27189054/5-essential-elements-for-zinc-sulfide