Multiple Choice
What is the significance of finding evidence that zirconium/uranium rocks formed in water 4.2 million years ago?
A) Zirconium can be used for dating old rock samples.
B) The Earth coalesced from gas earlier than originally thought.
C) The Earth cooled earlier than originally thought.
D) Radiation played a role in the origin of life.
Correct Answer:
Verified
Correct Answer:
Verified
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