what can the rock layers tell us about life on earth? your answer explain the process that creates…

what can the rock layers tell us about life on earth? your answer explain the process that creates sedimentary rocks. your answer explain how natural processes, like earthquakes, unearth new rock layers and fossils. your answer

what can the rock layers tell us about life on earth? your answer explain the process that creates sedimentary rocks. your answer explain how natural processes, like earthquakes, unearth new rock layers and fossils. your answer

Answer

Brief Explanations:

  1. Rock layers can tell us about past life - forms through fossils they contain. Fossils are remains or traces of ancient organisms, and their position in rock layers helps in understanding the evolution and succession of life on Earth.
  2. Sedimentary rocks are created through the processes of weathering, erosion, transportation, deposition, and compaction - cementation. Weathering breaks down rocks into smaller particles. Erosion and transportation move these particles. Deposition occurs when the transporting medium (like water, wind) loses energy and drops the particles. Compaction and cementation then turn these loose sediments into solid rock.
  3. Earthquakes can cause the ground to shift and fracture. This movement can uplift buried rock layers and fossils that were previously deep underground to the surface, making them accessible for study.

Answer:

  1. Rock layers can reveal past life - forms via fossils, showing evolution and succession.
  2. Sedimentary rocks form through weathering, erosion, transportation, deposition, and compaction - cementation.
  3. Earthquakes shift and fracture the ground, uplifting buried rock layers and fossils.