Solved UPSC CDS/OTA Question
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Q · Geological Time ScaleMedium · 45s
The Banded Iron Formations (BIFs) are primarily associated with which Eon?
TopicGeological Time Scale
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Explanation:BIFs formed mainly in the Proterozoic due to oxygenation of oceans.
Final Answer: Option B - Proterozoic