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What type of fossil evidence would be most helpful to a scientist trying to determine how much oxygen was in the atmosphere two million years ago? A) Ice Cores B) Tree Rings C) Carbon Films D) Trace Fossils
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What type of fossil evidence would be most helpful to a scientist trying to determine how much oxygen was in the atmosphere two million years ago?

A) Ice Cores
B) Tree Rings
C) Carbon Films
D) Trace Fossils

User Yogurt
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1 Answer

4 votes
Carbon films I believe
User Kingraam
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