Upper portions of the grand canyon show undisturbed horizontal layers of of sedimentary rock which of stenos principles explain this

original horizontality

This would be some of your possibilities:

a. principle of original horizontality(answer)

b. principle of superposition

c. principle of lateral continuity

d. principle of original verticality

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !