Ozone
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Ozone. Relationship between changes in oxygen concentration and the development of the ozone layer. 3500mya Cyanobacteria (photosynthetic) began producing molecular oxygen. Cyanobacteria. = Oxygen.

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Relationship between changes in oxygen concentration and the development of the ozone layer
Relationship between changes in oxygen concentration and the development of the ozone layer

  • 3500mya Cyanobacteria (photosynthetic) began producing molecular oxygen.

    Cyanobacteria

= Oxygen






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