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

The basal unit of the transgressive Kaskaskia sequence is marked by extensive black shale
  deposition. Indicate whether the statement is true or false.
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Gax_52912Gax_52912
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6 years ago
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shangshang
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6 years ago
this is exactly what I needed
2ne1_12345
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Yesterday
Thanks
emilyas19
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2 hours ago
Smart ... Thanks!
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