ndex fossils are useful to geologists if the fossils _______________.

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1 point
have lived over a short period of time
are not easily recognized
are not widely distributed geographically
are scarce

1 answer

Index fossils are useful to geologists if the fossils have lived over a short period of time. This allows geologists to accurately date the rock layers in which these fossils are found, making them valuable for correlating the age of different geological formations.

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