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Geologic History 1

Test Description: Principles that guide in interpreting Earth History

Instructions: Answer all questions to get your test result.

1) The present is the key to the past describes

APrincipal of Uniformity BPrincipal of cross cutting CPrincipal of Superposition DPrincipal of Horizontality

2) The principal of superposition states that

AThe youngest event is on the bottom BThe youngest event is on the top CLayers are deposited in horizontal layers DThe present is the key to the past

3) Which event is older?

ASediments that make up a sedimentary rock BA sedimentary rock made of sediments CAn igneous intrusion in a sedimentary rock Dcontact metamorphism on limestone

4) Which event is youngest?

AA fault in sedimentary rocks BA fold in sedimentary rocks CAn intrusion into sedimentary rocks DAll of the examples

5) There are three rock layers. Layer A is above B. Layer B is above layer C. Which layer is the oldest layer?

AB BA CC

6) How are sedimentary layers deposited?

AFaulted BIn flat horizontal layers CWith intrusions DFolded

7) What is relative dating of rock layers?

AThe actual age of a rock layer BThe age of a rock layer in relation to other rock layers CThe decay product of an element DAge cannot be determined using rock layers

8) How can a rock layer on the top be older than a rock layer beneath it?

AThe layers were deposited horizontally BThe rock layers were made of sediments CThe rock layer was moved by man DThe rock layers were folded over

9) Which event is youngest?

AAn intrusion in the sedimentary rock BThe rock made of sediments CSediments that make up a rock DThe cement that binds the sediments

10) Contact metamorphism in rock layers will form a transition zone between which two rocks?

ABasalt and granite BSandstone and granite CSiltstone and shale DLimestone and sandstone

*select an answer for all questions

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