2 examples of relative dating
Because fossils are believed to record the slow but progressive development of life, geologist use them to identify the relative age of rocks throughout the world.
From the results of studies on the origins of the various kinds of rocks (petrology), coupled with studies of rock layering (stratigraphy) and the fossils they contain (paleontology), geologists have associated layers of rocks with sequence of events thought to have occurred over hundreds of millions of years.
Each year a tree adds a layer of wood to its trunk and branches thus creating the annual rings we see when viewing a cross section.
It only sequences the age of things or determines if something is older or younger than other things.3.) Determining the order of events in the universe.