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.
ndex fossils are useful to geologists if the fossils _______________.
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have lived over a short period of time
are not easily recognized
are not widely distributed geographically
are scarce
1 answer