Geology · Geological Time Scale

Which of the following best describes the defining characteristics of the Hadean Eon?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1An increase in oxygen levels leading to the emergence of eukaryotes and simple multicellular animals
2A hot, hostile environment marked by Earth's formative stage, intense volcanic activity, and asteroid impacts✓
3The rapid diversification of invertebrates with hard shells and early plants colonizing land
4The emergence of aquatic prokaryotic organisms that shaped Earth's early atmosphere

Correct answer

A hot, hostile environment marked by Earth's formative stage, intense volcanic activity, and asteroid impacts

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