Carbon-14 is described as an unstable isotope because it
A) decays into a different isotope over time.
B) changes to carbon-12 faster than carbon-12 changes to carbon-14.
C) is more susceptible to radiation than is carbon-12.
D) never changes and is not a good isotope for radiometric dating.
Correct Answer:
Verified
Q10: What is Pangaea?
A) a single landmass that
Q11: Laurasia was a landmass that consisted of
A)
Q12: Continental drift is the
A) change in position
Q13: Around 225 Ma, which of the following
Q14: During the Permian and Triassic eras, much
Q16: Potassium-argon dating is best used to date
A)
Q17: The first mammals evolved from
A) dinosaurs.
B) birds.
C)
Q18: In general, larger continents have
A) less extreme
Q19: The first mammals were
A) large and diurnal.
B)
Q20: Which of the following important geological events
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