The smallest unit of geologic time is a/an __________.
A) era
B) epoch
C) eon
D) period
Correct Answer:
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Q35: The principle of faunal succession states that:
A)
Q36: The earliest fossils have been found from
Q37: Scientists have determined the Earth's age to
Q38: The principle of original horizontality is based
Q39: Humans evolved during the _ Era/Eon.
A) Cenozoic
B)
Q41: In a disconformity, older sedimentary beds were
Q42: Carbon-14 dating is used to determine the
Q43: Parent and daughter isotopes occur when an
Q44: The half-life of a radioactive isotope is:
A)
Q45: The Permian extinction occurred at the end
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