(10 points) 2. The five boxes below represent a geologic cross-cut with five layers (A is on top and E is on
Score
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.
Answs
A
Limestone layers
|Banded-iron formations
R
Metamorphic rocks with fine grains
Red beds
Chert layersl

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.

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume