Layers of sedimentary rock uncovered nearer for the surface area of Earth are more youthful and formed extra just lately. Layers of sedimentary rock observed further in Earth are older and formed for much longer ago. Likewise, fossils located in these diverse layers of sedimentary rock can assist researchers estimate https://damienetdmw.activosblog.com/26795414/a-secret-weapon-for-types-of-rocks-activities-for-third-grade