IntroductionCyanobacteria appeared in the anoxic Archean Earth. evolving for the first time oxygenic photosynthesis and deeply changing the atmosphere by introducing oxygen. Starting possibly from UV-protected environments. characterized by low visible and far-red enriched light spectra. https://mysocialfeeder.com/story4381198/a-comparative-study-of-the-views-of-sunni-and-shiite-exegetes-regarding-the-buy%C5%ABt-verse-relying-on-a-critique-of-the-prominent-view