Respuesta :
Answer:
D
Explanation:
D layer is the last layer of the soil that is present at the bottom of other layers having the oldest layers. The bottom layer of soil is formed first and when we go up the age of soil layers decreases because it is formed after the parent soil. The fossil that is present at the bottom layer is considered as oldest fossil as compared to those fossils that are present in the above layers of that soil.
The crust is the outermost layer of the earth that is composed of rocks. The oldest fossil is found in the D layer of the cross-section.
What is Fossil?
Fossil is the dead remains of the plants and animals buried in the layers of the crust of the earth. The rock layers of the crust contain fossils from various eras.
The deep layer or the last layer was formed first hence, will contain the oldest fossil as the age of the rock and soil decreases when one moves upward towards the surface.
Therefore, option d. the D layer is the parent layer and will have the oldest fossil.
Learn more about fossils here:
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