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Author Question: Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between ... (Read 92 times)

Brittanyd9008

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on: Feb 28, 2020

Question 1

The modern oceans are a major repository for the greenhouse gas ________, which some organisms utilize to make their shells.
◦ CO2
◦ ammonia
◦ SiO2
◦ iron oxide
◦ limestone

Question 2

Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between 3.5 and 2 billion years ago because ________.
◦ chert was being deposited by bacteria and iron was a common ocean deposit
◦ iron was using the oxygen produced by bacteria and chert was a common ocean deposit
◦ photosynthesis had not yet started to generate oxygen so iron and chert were deposited on the sea floor
◦ iron and chert were abundant in the early Earth
◦ outgassing produced both chert and iron oxide in roughly equal amounts
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
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Marked as best answer by Brittanyd9008 on Feb 28, 2020

nickk12214

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Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Brittanyd9008

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Reply 2 on: Feb 28, 2020
Great answer, keep it coming :)

sailorcrescent

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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