ebanzz
ebanzz ebanzz
  • 29-09-2018
  • Chemistry
contestada

Can someone help me

Can someone help me class=

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annasour14
annasour14 annasour14
  • 29-09-2018
#2. 4.6 billion years
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XvaneX
XvaneX XvaneX
  • 29-09-2018
I believe # 1 is an era and # 2 4.6 billion
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