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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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neonfayt neonfayt
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6 years ago

Guide fossils are most useful because they ____.
  a. occur over a small geographic area
  b. occur over a brief time interval
  c. are difficult to identify
  d. occur over a long period of time
  e. occur in all rock types
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zxcvbnzxcvbn
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6 years ago
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