The sediment found in rock layers can determine what the Earth’s surface and climate was like at a given time in history. Scientists have given names to these certain points of time or eras in history. The oldest Era is the Precambrian E

Some topics in this essay:
History Earth, Eruptions Mountain, Mesozoic Era, Cenozoic Era, Paleozoic Era, Precambrian Era, Precambrian Eras, paleozoic era, history earth, cenozoic era, mesozoic era, geologic column, earth history, era dating, earth’s surface, history scientists, continent pangaea,