Question

(1 pt) When did the universe form? (2 pts) How and when were Earth's moon formed (brief answer is OK)? (1 pt) When was the Late Heavy Bombardment? (2 pts)

Why do you think the Eon ranging from Earth's formation (4.56 Ga) to about 4-3.8 billion (Ga) years ago is referred to as the Hadean (hellish like conditions)?

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