Radioactive Isotopes,differentiation of Earth's Iron Core,gravity-Driven Compression,and Meteoric Bombardment All
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:
Verified
Q1: If the volatile content of magma is
Q2: When rock is partially melted,the chemistry of
Q3: The difference between magma and lava is
Q4: Volatiles refer to substances that _.
A)crystallize most
Q5: All other factors being equal,intrusive rocks that
Q6: All of the Earth's internal heat was
Q8: Important volatiles in magmas include _.
A)iron- and
Q9: Very early in Earth's history,it was so
Q13: A majority of the melts in the
Q19: Most commonly,felsic igneous rocks
A) contain more iron
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