Directions: Read the following material, examine and line graph the data, then answer the questions that follow.
An area of sedimentary rock was being examined for fossils. The area was once believed to be inhabited by many
forms of sea creatures. The geologists believed the area was between 100 million and 150 million years old. Below
find a chart containing the data based on their findings. The layers are recorded from the top most to the lowest.
The uppermost layer is the youngest of the layers based on geologic time.
Depth of the layer in meters.