Assertion: hydrogen sulfide | /r/HasSubevent | the absence of oxygen gas
Facets:
value: often
type: TEMPORAL
value: such as in swamps
type: LOCATION
Source sentences:
text: Hydrogen sulfide often results from the prokaryotic breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion.
text: Hydrogen sulfide often results from the microbial breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion.
text: Hydrogen sulfide often results from the bacterial breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion.