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Technical feasability relates to the technology used for it, if the tech is already possessed and how easy it is to find or otherwise, if it will be upgraded and supported in the future, how it will operate with new or emerging tech, how available the tech is, etc. Schedule feasibility relates...

Thanks guys, I figured out what it was talking about. It's evidence for when photosynthetic microbes (which produced an oxygen waste product) and first free oxygen was released into the atmosphere. The "Banded Iron Formations" are formed by the oxidisation of the Ferrous (Iron) ions in seawater...

Hi all, I'm just wondering if anyone has any idea of "Banded Iron Formations" and how they relation to the first free oxygen released into the atmosphere? The information I have on them isn't making much sense, so I'm wondering if anyone can help me out. Thanks! E/Y.