Archaeologists used pieces of burned wood, or char-
coal, found at the site to date prehistoric paintings and
drawings on walls and ceilings of a cave in Lascaux,
France. See Figure 3.1.8. Use the information on page 84
to determine the approximate age of a piece of burned
wood, if it was found that 85.5% of the C-14 found in
living trees of the same type had decayed.
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