The layer of rocks can be seen in sedimentary rock formations that have a layering of hard and soft rocks. Generally, the bed rocks is the oldest and are bound at the bottom.
- The younger layer of rocks is usually deposited at the top and the oldest layer is found at the bottom. As per the diagram the oldest layer is found at the greater depth.
- The age of the layers can be determined by the presence of the fossils. Hence the oldest layer is the F layer.
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