Geology · Geological Time Scale
Which geological eon, spanning from 2.5 billion to 541 million years ago, is specifically characterized by the Great Oxidation Event and the initial emergence of eukaryotes?
- 1Hadean Eon
- 2Archean Eon
- 3Proterozoic Eon✓
- 4Paleozoic Era
Correct answer
Proterozoic Eon
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