Card 18 / 34: Which is false regarding H2S gas?
A) Responsible for more deaths in closed animal facilities than any other gas.
B) At concentrations above 200 ppm , it has a paralyzing effect olfactory system
C) potentially lethal gas formed by anaerobic bacterial decomposition of protein
D) Artificial respiration and breathing is commonly re established spontaneously
E) It is an irritant gas of manure pits that causes inflammation

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