Question

the gas produced after the treatment of organic matter is

Answer 1

Hydrogen sulfide (H2S) is a widely distributed cellular asphyxiant.189 It is produced by decomposition of organic matter in oxygen-poor environments, such as sewers, farm manure pits (into which children may fall, or around which they may play), as well as in some industrial processes and from volcanic gas vents. Olfactory detection of H2S fatigues rapidly, increasing the risk of prolonged exposure and severe intoxication
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Answer 2

Answer : Biogas
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