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. Explain how the composition of the Earth’s atmosphere caused changes to form the different rocks over time. A - Limestone Layers
B - Banded-iron formations
C - Metamorphic rock with fine grains
D - Red Beds
E - Chert layers
(Please describe as much as possible, I don't really understand this at all)

Explanation:

Here is the explanation about these layers.

Limestone: This rock is formed from sediments that gather on the river floor over time & Limestone is mostly found in rivers, caves, etc. This resource is made from natural activity, for example, sediments travelling through the river & the water causing it to settle.

Banded-iron formations: This rock, or resource, is thought to be made in the seawater millions of years ago and is the result of oxygen production from a particular type of photosynthetic cyanobacteria. The oxygen, combined with dissolved iron makes this resource.

A metamorphic rock with fine grains:  I cannot explain how this rock is made from, please find someone who can.

Red Beds:  "Red beds may form during diagenesis. The key to this mechanism is the intrastriatal alteration of ferromagnesian silicates by oxygenated groundwaters during burial. " - Wikipedia

Chert Layers:  Chert can form when microcrystals of silicon dioxide grow within soft sediments that will become limestone or chalk.

I hope this has helped you to learn about these rocks.

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