elliecummard
elliecummard elliecummard
  • 16-10-2020
  • Chemistry
contestada

What event marks the beginning of Earth's current era?
O A. The emergence of human life
O B. A mass extinction
O C. The disappearance of land bridges
O D. The end of the last ice age

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reynolds225
reynolds225 reynolds225
  • 16-10-2020
B. We are in the cenzoic era so what previously had happen to cause the life we live today was a huge mass extinction.... hope this helps!!
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