How do index fossils assist in dating other fossils?
A. Fossils found in rocks above the index fossils are older.
B. Fossils with similar physical features as the index fossils are the same age.
C. Fossils with the same chemical composition as index fossils are the same age
D. Fossils found in the same rock as the index fossil are considered to be the same age
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How do index fossils assist in dating other fossils?
A. Fossils found in rocks above the index foss...
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