Louise Culver's Science Classes

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Test Essay Questions

These are the actual questions!

Pick one question and answer:

28.  You are analyzing sedimentary rock layers that have an igneous intrusion. What caused the igneous intrusion? What is the relative age of the igneous intrusion?What geologic law applies here?

29. Which do you think would reveal more about an ancient animal, a coprolite or a trace fossil?EXPLAIN.

30. How do geologists use the law of superposition and  law of crosscutting relationships to determine the relative age of disrupted or eroded rock layers?