Geologic Time Case Study

Assignment 4This covers Unit IV in the textbook (Chapter 8).
Matching (3 points)
1)Match each item with the correct description (there will be one unused description).
index fossil
A)a fossil organism that is restricted to a certain brief stretch of geologic time, but was widespread and abundant during its time on Earth
B)the notion that we can understand the geologic past by focusing on present day processes and physical laws; geologic change may be slow or gradual
C)an unconformity in which younger sedimentary layers overlie older metamorphic or intrusive igneous rock (sedimentary layers sit on an erosion surface)
D)the defunct notion that the Earth is only a few thousand years old, and that all geologic change is accomplished rapidly through violent events
E)fossil tree sap
MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers the question. (3 points each)

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