Answer:
Option (A)
Explanation:
The law of Superposition was introduced by Nicolas Steno in the 17th century. According to this law, in an undisturbed sedimentary rock layers or sequence, the rocks that are found at its base are the oldest rocks and the rocks that are found at the apex indicates the youngest rocks.
In nature, all sedimentary sequences do not satisfy this principle, because sometimes, some sedimentary sequences are affected by several factors such as the plate tectonic activity, earthquake, and faulting.
The Steno's principles were a huge contribution to the field of geology.
Thus, the correct answer is option (A).
