A scientist finds the same type of index fossil in layers of rock in both Africa and South America. What does this indicate about the ages of the rocks?

Which is the most accurate method used in determining the age of a fossil?

Scientists uncover mammoth bones and are able to determine the amount of carbon-14 in the bones. Which best explains the use of carbon-14 in studying the mammoth?

Which conclusion can be made when observing multiple undisturbed layers of rock?

Which process would be most effective in determining the age of fossils embedded in rock?

Which best describes the relationship between rock layers and index fossils?

A geologist found 600-year-old sediments below a particular rock layer. Which will the geologist most likely find above the rock layer?

A scientist is using an isotope to determine the age of a fossil. What method of dating is the scientist using?

An unstable element that decays at a predictable rate, is a ...

This type of fossil is found in many places, lived a short time period, and used for relative dating

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