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ConcepTest: Longshore Current part of Examples
Three hotels are located near each other along a popular beach. Hotel 2 decides to build a groin (out into the long shore current). Which of the other hotels is most likely to sue to stop the construction? a. Hotel ...

ConcepTest: Relative Time Diagram #3 part of Examples
Match the features in the relative time diagram below with the events described in the short sentence. Assume all rocks are sedimentary unless otherwise indicated. Which unit is composed of granite and older than ...

ConcepTest: Relative Time Diagram #4 part of Examples
Match the features in the relative time diagram below with the events described in the short sentence. Assume all rocks are sedimentary unless otherwise indicated. Which sedimentary unit did not experience contact ...

ConcepTest: Relative Time Diagram #5 part of Examples
Assuming all rocks are sedimentary unless otherwise indicated, what is the possible age of F if A is 100 million years old and D is 70 million years old? a. 85 Myrs b. 170 Myrs c. 55 Myrs d. 110 Myrs

ConcepTest: Einsteinium Half-life part of Examples
The isotope Einsteinium-253 has a half-life of 20 days. If you began an experiment with an 80-gram sample of Einsteinium-253, how much would remain after 60 days? a. 60 grams b. 40 grams c. 20 grams d. 10 grams

ConcepTest: Oldest Rock Dating #1 part of Examples
The world's oldest known rock is approximately 4 billion (4,000 million) years old. What are the approximate relative percentages of parent and daughter isotopes for Uranium-238 and Lead-206 (half-life = 4.5 ...

ConcepTest: Oldest Rock Dating #2 part of Examples
The world's oldest known rock is approximately 4 billion (4,000 million) years old. What are the approximate relative percentages of parent (Uranium-235) and daughter (Lead-207) isotopes? The half-life of 235U ...

ConcepTest: Radioactive Decay part of Examples
If radioactive decay began with 400,000 parent atoms, how many would be left after 3 half lives? a. 200,000 b. 100,000 c. 50,000 d. 25,000

ConcepTest: Relative Layer Age #10 part of Examples
Examine the image of rock layers below. Which letter represents the layer that was formed earliest? Image courtesy of USGS a. A b. B c. C d. D

ConcepTest: Relative Layer Age #1 part of Examples
Examine the image below and determine which layer is oldest. Image courtesy of Alexandra Moore, Cornell University a. Layer 1 b. Layer 2 c. Layer 3



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