The Precambrian history of Earth is difficult to determine for all but which of the following reasons?
A) There is Precambrian rock exposed only on three continents.
B) Precambrian rock is complexly deformed.
C) Precambrian rock is metamorphosed.
D) In many places the rock is deeply buried.
E) There are few fossils in the Precambrian record.
Correct Answer:
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