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Alex
3 years ago
11

Robert looked at a timeline showing the geologic time scale. He was surprised at the amount of information included in it and wo

ndered what scientists used to create it. What evidence did scientists use to develop the geologic time scale? Choose the THREE that apply.
Geography
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

  • Geologic time scale records events over the history of earth.
  • It reflects a consistent period of historical events grouped into four eras.
  • They developed the time scale by studying rock layers and index fossils.

Explanation:

  • Scientific develops the geologic time scale to study the rocks with their relative ages and later radioactive dating was used to define their absolute ages.
  • They divided the ages into Precambrian, paleozoic, Mesozoic, and Cenozoic. The geologic time scale became important for the identification of fossil records of the planet.
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