Difference between radiometric absolute dating
Dendrochronology is another of the popular method of finding the exact age through growth and patterns of thick and thin ring formation in fossil trees.
If you have 3 layers of rock, the one in the middle is younger than the bottom one and older than the top one.
The main techniques used in absolute dating are carbon dating, annual cycle method, trapped electron method, and the atomic clocks.
Most absolute dates for rocks are obtained with radiometric methods.
This is a method that does not find the age in years but is an effective technique to compare the ages of two or more artifacts, rocks or even sites.
This is possible because properties of rock formations are closely associated with the age of the artifacts found trapped within them.
In relative dating the exact age of the object is not known; the only thing which made clear using this is that which of the two artifacts is older.
The relative dating is less advanced technique as compared to the absolute dating.