What is the superposition of strata theory? A. that the Earth's is composed of a core, mantle, and crust
B. that sedimentary rock is composed of bits of rock eroded minerals
C. that oldest layers of sediment in rock formations are found under more recent layers

I believe the right answer is C.

Explanation:

Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence. ... It is one of the great general principles of geology.

Explanation:

I hope it is correct I think the answer is B. that sedimentary rock is composed of bits of rock eroded minerals

i believe she will have 25 quarters.

step-by-step explanation:

this doesn't support enough information to answer the question.