How does unifomitarianianism help geologist understand earth history?

Uniformitarianism is the principle that the processes shaping the Earth today, such as erosion and sedimentation, have been consistent over geological time. This concept allows geologists to interpret past geological events by studying current processes, enabling them to reconstruct Earth's history. By applying uniformitarian principles, geologists can date rock layers and understand the environmental conditions that existed when those layers were formed. Ultimately, this helps build a comprehensive timeline of Earth's geological and biological evolution.