Why was the advent of absolute dating important to the study of early Earth history?
A) Isotope half-lives are all too long to use them for dating young rocks.
B) There are few fossils in Precambrian rocks to use fossils for age control.
C) There are too few Precambrian rocks left to use fossils for age control.
D) Precambrian time is too short of an interval of geologic time to use fossils for age control.
Correct Answer:
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