perltiangelsky perltiangelsky
  • 13-11-2015
  • Chemistry
contestada

Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today.
A. lead
B. hydrogen
C. ore
D. oxygen

Respuesta :

Vlada125
Vlada125 Vlada125
  • 09-12-2016
I think it is D. oxygen.
Answer Link

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