Layers G and Z are the youngest at site 1 and 2 respectively. On the other hand, layers A and W are the oldest at site 1 and 2 respectively.
The Earth's crust is made up of several layers of sedimentation that have accumulated for 46 billion years. Each layer has characteristics, minerals, and materials typical of that time.
According to the above, the distribution shown in the image is that of different layers from different times. Layers G and Z have the same contained organisms that are:
and are in the upper part, so it can be inferred that it is the most recent layer to have formed (the youngest)
On the other hand, there are layers A and W that are in the lower part of each of the sites, this means that they were formed before the others and that is why they are the oldest.
However, both are not the same. While layer A has
Layer W has
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