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What kind of gas was used in World War I against soldiers in the trenches? a Oxygen and hydroxide b Hydrogen and ammonia c Argon and dioxide d Chlorine and mustard

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3 votes

Answer:

I think its d. I'm positive they used mustard

Step-by-step explanation:

User Enchantres
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4 votes

Answer:

chlorine and mustard

Step-by-step explanation:

User Volpato
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