Dating 101
Read the lesson Dating 101 and complete the questions below.
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1. How could a natural event, like an earthquake, make it difficult to use the law of superposition? *
1 point
2. Sam is the oldest in his group of friends. Amira is five years younger than Sam, Lea is between Sam and Amira in age, and Marcus is the youngest. Arrange the names of the friends in order from youngest to oldest. *
1 point
3. Explain whether you used absolute or relative dating in the previous item and why you were able to use one method but not the other. *
1 point
4. Why would a radioactive element need to have a known rate of decay in order for it to be useful as a dating tool? *
1 point
5. Why is the use of carbon-14 dating limited? *
1 point
6. Describe a scenario in which a scientist might use both relative and absolute methods of dating. *
1 point
Unifying Concepts and Processes
7. When paleontologists dated the Burgess shale fossils to the Cambrian period because trilobites were found among them, were they using relative dating or absolute dating?
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1 point
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