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Author Question: The Phanerozoic eon and the Paleozoic era began about ______________ million years ago. Fill in the ... (Read 31 times)

sarasara

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on: Jul 28, 2018
The Phanerozoic eon and the Paleozoic era began about ______________ million years ago.
 Fill in the blank(s) with correct word

Question 2

Reasonable values for the absolute ages of sedimentary rocks are frequently determined by relating them to ______________ rocks whose absolute ages have been determined.
 Fill in the blank(s) with correct word


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chereeb

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Reply #1 on: Jul 28, 2018
Answer to Question 1

545

Answer to Question 2

igneous


sarasara

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Reply #2 on: Jul 28, 2018
TY


chereeb

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Reply #3 on: Jul 28, 2018
You're welcome


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