Biology

For A: This method is more related to radiometric dating, which is used to estimate the age of rocks and fossils based on the decay of radioactive isotopes. However, fossils themselves are not always directly dated by this method, especially if the fossils are too old or lack measurable isotopes.

For B: Fossil DNA analysis can provide information about the species and its evolution, but it’s not a primary method for dating fossils or rocks. DNA analysis is more useful for studying the biological aspect rather than the geological age of the rock.

For C: Scientists use the principle of faunal succession, which is ...