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Radioactive Isotopes,differentiation of Earth's Iron Core,gravity-Driven Compression,and Meteoric Bombardment All

Question 2

Multiple Choice

Radioactive isotopes,differentiation of Earth's iron core,gravity-driven compression,and meteoric bombardment all caused early Earth to ____________.


A) glow brighter than the Sun
B) be much cooler than at present
C) be much hotter than at present
D) be much more oblong than at present

Correct Answer:

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