gwinkel18
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The atmosphere that we depend on for our survival is enriched by numerous cyanobacteria. This fact justifies which characteristic of cyanobacteria?

Respuesta :

h3lpn33d3d
Cyanobacteria are photosynthetic. The photosynthesis reduced the carbon dioxide in the atmosphere and put oxygen into the atmosphere. Before the cyanobacteria started this process, Earth's atmosphere didn't have oxygen.

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