(solved)11) Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between 3.5 and 2 billion years ago because ________.. . . . .

11) Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between 3.5 and 2 billion years ago because ________.A) chert was being deposited by bacteria and iron was a common ocean depositB) outgassing produced both chert and iron oxide in roughly equal amounts and the oceans becamesaturated with themC) iron was using the oxygen produced by bacteria and chert was a common ocean depositD) iron and chert were very abundant in the early earthE) photosynthesis had not yet started to generate oxygen so iron and chert were the deposited on the seafloor

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Answer to 11) Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between 3.5 and 2 billion years ago because ________. . . .

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