Which of the four sedimentary layers in this figure is the oldest?
A)the layer on top
B)the layers in the middle
C)the layer on bottom
D)there is not enough information to tell

Question

Which of the four sedimentary layers in this figure is the oldest? 
A)the layer on top 
B)the layers in the middle 
C)the layer on bottom 
D)there is not enough information to tell

Quizplus · Accepted Answer

This is due to the principle of superposition, which states that the oldest layer will be on the bottom and the youngest layer will be on the top. Therefore, the layer on the bottom is the oldest.

Which of the Four Sedimentary Layers in This Figure Is