AaliyahJordan AaliyahJordan
  • 26-05-2017
  • Biology
contestada

Scientists believe that the Earth's early atmosphere lacked __________ gas because photosynthetic organisms did not yet exist.

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Bsini
Bsini Bsini
  • 26-05-2017
carbon dioxide Let me know if you want me to explain.
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Аноним Аноним
  • 26-05-2017
I think it is carbon dioxide.  I'm not sure though.
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