The younger layers of rock in the Grand Canyon are on top of the older layers. Which of Steno’s principles best explains this?
Aprinciple of original horizontality
Bprinciple of superposition
Cprinciple of lateral continuity
Dprinciple of original verticality
Aprinciple of original horizontality
Bprinciple of superposition
Cprinciple of lateral continuity
Dprinciple of original verticality