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Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth? A. dissolved oxygen B. dissolved carbon dioxide C. dissolved methane D. dissolved ammonia
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Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?

A.
dissolved oxygen
B.
dissolved carbon dioxide
C.
dissolved methane
D.
dissolved ammonia

User Sergey Stolyarov
by
7.0k points

2 Answers

3 votes

Answer:

B. Dissolved carbon dioxide

Step-by-step explanation:

Plato answer

User Adadion
by
7.4k points
5 votes

Answer:

Dissolved carbon dioxide

Step-by-step explanation:

Just took the test and it was correct

User Extols
by
6.5k points
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