Quiz 1+2 2_18_10 Makeup_Answers-1

Quiz 1+2 2_18_10 Makeup_Answers-1 - EAS/ENGR 122...

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EAS/ENGR 122 Earthquake! Spring 2010 Quiz 2 2_18_10 WITH QUIZ 1 MAKEUP ANSWER KEY 1. Which of the following is NOT a component of a lithospheric plate: a) oceans b) asthenosphere c) crust d) uppermost mantle 2. Which of the following is a major factor in the rapid increase in the annual cost of natural hazards over time? a) increasing rates of plate motion b) increase in global population c) decreasing complexity of infrastructure d) increasing amounts of greenhouse gases emitted from volcanoes 3. Lithospheric plates typically move at rates of: a) a few cm per year b) a few kilometers per day c) a few miles per hour d) a few millimeters per million years 4. According to the best scientific evidence, the age of the earth is approximately a) 2.5 million years b) 2.5 billion years c) 4.5 billion years c) 13.5 billion years 5. The Wadati –Benioff zone is a: a) region beneath midocean ridges that melts to form oceanic crust b) the boundary between the mantle and outer core c) the portion of the San Andreas fault that “creeps” (slips slowly) rather than abruptly as in an earthquake EAS 1220 Fall 2010 Quiz 2 Page 1/6
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d) a dipping zone of earthquakes that typically extends to upper mantle depths 6. The earth’s albedo is approximately ? a) 10% b) 30 % c) 50% d) 100% 7. Continental crust is formed: a) by partial melting of subducting plates and overlying mantle b) erosion of oceanic crust and its redeposition c) fractional melting of magmas rising as part of “hot spots” d) melting of oceanic crust at mid-ocean ridges 8. Which of the following terms does NOT refer to a compositionally defined layer in the earth: a) Crust b) Mantle c) Lithosphere d) Core 9. The Curie point refers to
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This note was uploaded on 11/07/2010 for the course EAS 1220 taught by Professor Brown during the Spring '08 term at Cornell University (Engineering School).

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Quiz 1+2 2_18_10 Makeup_Answers-1 - EAS/ENGR 122...

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