Dating methods based on laboratory treatment or analysis of various items recovered from an excavation that can tell us, for example, how many years ago a rock layer formed, are called . a. numerical dating methods b. "layer cake" dating methods c. relative dating methods d. allometric dating methods

a. numerical dating methods

Explanation:numerical dating is to give rocks an actual date, or date range, in number of years. This is different to relative dating, which only puts geological events in time order.

New methods of numerical dating, including radiocarbon dating, revolutionized the understanding of this phase in prehistoric Europe. They showed that many supposedly interdependent developments had in fact developed independently and been separated by centuries.

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