An index fossil must be A. smaller than other fossils around it. B. larger than other fossils around it. C. older than 1 billion years. D. unique in its appearance.

Question

Dean Haynes

English

14 September, 00:27

An index fossil must be A. smaller than other fossils around it. B. larger than other fossils around it. C. older than 1 billion years. D. unique in its appearance.

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Answers (2)

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Karlie Banks · Answer 1

Answer is D, trust

Explanation: Took the test

Bibbles · Answer 2

D. unique in its appearance. Index fossils must have a unique form that is easy to identify without special equipment. Geologists make maps in the field as they gather data and specimens. If the index fossil is easy to identify without the use of a microscope or laboratory equipment, the field work can process more quickly.