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21 October, 07:03

Interpret data to determine the oldest rock bed. A sandstone contains a 400-million-year-old fossil. A shale has fossils that are over 500 million years old. A limestone, between the sandstone, contains fossils between 400 million and 500 million years old. Which rock bed is oldest? Explain.

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  1. 21 October, 07:47
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    The shale stone is the oldest layer based on the age of said fossil being key word - over - 500 million years old + ... thatsmore than the others ...
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