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The characteristic "rotten egg" smell of many active volcanoes is derived from ____________.

a. iron and magnesium within lava
b. stale water within the magma chamber
c. carbon dioxide gas
d. hydrogen sulfide gas

User Miigon
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1 Answer

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d. , hygrogen sulfide gas is known to have a strong " rotten egg " - like smell :)
User Aralox
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