kristymcaluv kristymcaluv

08-12-2015
Chemistry

contestada

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

Respuesta :

Prettigirlcrazi95 Prettigirlcrazi95

21-01-2019

C ........ oxygen........

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