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matarata matarata
wrote...
Posts: 277
5 years ago
Chemical reactions involving ________ have been proposed as energy-yielding reactions for the earliest organisms on Earth.
A) Fe, O2, and H2
B) S, O2, and H2
C) S, and O2
D) S, and H2
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taymak21taymak21
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Posts: 172
5 years ago
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