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ConcepTest: Rock Ages

ConcepTest questions by David McConnell, David Steer , Walter Borowski, Jeffrey Dick, Annabelle Foos, Jeffrey Knott, Alvin Konigsberg, Michelle Malone, Heidi McGrew, Kathie Owens, and Stephen Van Horn

Question:

Match the features in the relative time diagram below with the events described in the short sentences. Assume all rocks are sedimentary unless otherwise indicated.

What is the best estimate of the age of F if A is 100 million years old and D is 70 million years old?

Rocks
a. 85 Myrs
b. 170 Myrs
c. 55 Myrs
d. 110 Myrs

Student Responses:

No data yet. The correct response is A.

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References and Notes: