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Mathematics 70 Online
OpenStudy (anonymous):

2. The five boxes below represent a geologic cross-cut with five layers (A is on top and E is on the bottom). The types of rocks are listed on the right side. In each box, write the appropriate type of rock and explain the answer in relation to the history of the earth’s atmosphere. Answer: A Limestone layers B Banded-iron formations C Metamorphic rocks with fine grains D Red beds E Chert layers

OpenStudy (anonymous):

you need to put the different rock listed on the right into order with A begin the youngest and E bein the oldest. Then explain why they are that way. You need to recall the formation of the different atmospheres.

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