Carbon-14 is created in the atmosphere by the nuclear reaction of neutron from the cosmic rays and _______ in the atmosphere.
A) hydrogen
B) water vapor
C) nitrogen
D) oxygen
E) dust
Correct Answer:
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Q43: The _ includes most of geologic time
Q44: The truncation of bedding where sedimentary rock
Q45: _ is the spontaneous nuclear change of
Q46: The principle of _ allows rock layers
Q47: In radioactive decay a(n) _ emission is
Q49: Uranium-238 ultimately decays to _ -206.
A) lead
B)
Q50: The principle of _ states that fragments
Q51: In the radioactive decay process of _
Q52: A(n) _ is an erosional surface that
Q53: A(n) _ fossil is a fossil from
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