What is the concept of radioactive dating?

The technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material is called radioactive dating. This ratio is the same for all living things–the same for humans as for trees or algae.

What best explains the use of radioactive dating?

Scientists are analyzing a recently unearthed fossil using radiometric dating techniques. Which best explains the use of radioactive dating? to determine the absolute age of a rock layer. The graph shows possible changes to sea level over geologic time.

Which statement describes the law of superposition?

Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.