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-Based on the Information in the Graph,approximately How Old Are

Question 18

Multiple Choice

  -Based on the information in the graph,approximately how old are two rocks,one containing 25% uranium-238 and 75% lead,and one containing 50% uranium-238 and 50% lead? A)  around 2.25 billion years and 4.5 billion years, respectively B)  around 9 billion years and 4.5 billion years, respectively C)  around 1.3 billion years and 2.4 billion years, respectively D)  around 4.5 billion years and 9 billion years, respectively E)  The question cannot be answered with the information provided.
-Based on the information in the graph,approximately how old are two rocks,one containing 25% uranium-238 and 75% lead,and one containing 50% uranium-238 and 50% lead?


A) around 2.25 billion years and 4.5 billion years, respectively
B) around 9 billion years and 4.5 billion years, respectively
C) around 1.3 billion years and 2.4 billion years, respectively
D) around 4.5 billion years and 9 billion years, respectively
E) The question cannot be answered with the information provided.

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