Explain how scientists use geological time to determine the age of LANDFORMS.

To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years.

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this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.