How Do Banded Iron Formations Relate To Oxygen Levels?

Banded iron formations are thought to have formed in sea water as the result of oxygen production by photosynthetic cyanobacteria. The oxygen combined with dissolved iron in Earth’s oceans to form insoluble iron oxides, which precipitated out, forming a thin layer on the ocean floor. What does the banded iron formation tell us about the … Read more

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What Birds Sing At Night In Florida?

Northern Mockingbird. The Northern Mockingbird sings throughout the night, especially during mating season, February to August. … Eastern Whip-Poor-Will. … Yellow-Breasted Chat. … Barred Owl. … Eastern Screech-Owl. … American Robin. … Chuck-Will’s-Widow. … Nighthawks. What bird Can I hear singing at night? Eastern Whip-poor-will. Photo by Frode Jacobsen. Yellow-breasted Chat. Photo by Punkbirdr/Shutterstock. Barred … Read more

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