For example, it combines with the carbon monoxide our automobiles belch into the atmosphere to create the deadly phosgene gas that is used in chemical warfare. More cancer, more emphysema, more heart trouble. A microorganism that can live and grow only where free oxygen is present. Able to live or grow only where free oxygen is present. A microorganism that can live and grow where there is no free oxygen.
Anaerobes get oxygen from the decomposition of compounds that contain it.
Able to live or grow in the absence of free-oxygen. A poisonous, greenish-yellow, gaseous chemical used as a bleaching agent, in water purification and as a lung irritant in chemical warfare. H S. A poisonous, inflammable gas with the nauseating smell of rotten eggs. A colorless, odorless, inflammable gas formed by the decomposition of vegetable matter. Methane is present in natural gas and is used as a fuel and for illumination.