emmathesmartchick563
emmathesmartchick563 emmathesmartchick563
  • 03-09-2020
  • Biology
contestada

10.000000 points!!!! Pls answer!!!!

How much of the earths oxygen is generated by marine organisms?
A. 50%
B. 25%
C. 90%

Respuesta :

christiemassingill
christiemassingill christiemassingill
  • 03-09-2020
I think the answer is A
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