The geologic time scale was devised based on ______.
A) fossils
B) types of strata
C) isotope decay
D) radioactive dates
Correct Answer:
Verified
Q84: One method to obtain the absolute age
Q85: Compare and contrast relative age dating with
Q86: In an undeformed sequence of sedimentary rocks,
Q87: The phrase, "The present is the key
Q88: An unconformity in which the strata on
Q90: For a radioactive isotope like Uranium- 235,
Q91: We now live in the_ era.
A) Paleozoic
B)
Q92: The term_ refers to life forms intermediate
Q93: Most sedimentary rocks are readily dated by
Q94: What are the mass and charge of
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