What is the name of the dating method that uses comparisons to determine the age of rock layers?

The answer is; relative dating

Through relative dating, rock layers are able to be sequenced with regards to their ages relative to each other. This, therefore, does not determine the absolute age of the rock layers (absolute dating). Techniques used in relative dating include  stratigraphy and biostratigraphy that determine which layer is older than the other. In absolute dating, methods employed are carbon-dating and radiometric dating.

i believe that it is a exoplanet

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.