The law of superposition is a principle used in geological and archaeological sciences to determine the relative age of fossils in rocks. According to this law, in undisturbed sedimentary rock layers, the oldest rocks are found at the bottom while the youngest ones are found at the top. Therefore, the fossils found in the deeper layers are considered to be older than those found in the upper layers. This law helps scientists establish a chronological order of the fossils and rocks in which they are found, providing insights into the geological history of an area.
