Quiz 5A_answers

Quiz 5A_answers - 6. The dense core of Earth is thought to...

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Quiz 5 A Wednesday 03/07/2011 1. Primary waves are faster than Secondary waves, and therefore appear on a seismograph first. a. True b. False 2. When an earthquake occurs, energy radiates in all directions from its source. The source is also referred to as the ________________. a. Inertial point b. Epicenter c. Focus d. Seismic zone 3. Major earthquakes are often followed by somewhat smaller events known as ________________. a. Aftershocks b. Foreshocks c. Tremors d. Hyposhocks 4. Overall, this type of seismic wave is the most destructive. a. P wave b. S wave c. Surface wave d. Tsunami 5. The asthenosphere is located ______________. a. Within the crust b. In the upper mantle c. Between the mantle and core d. Within the outer core
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Unformatted text preview: 6. The dense core of Earth is thought to consist predominately of ____________. a. Nickel b. Lead c. Copper d. Iron 7. Young rocks in the center and older rocks on the outside characterize a syncline. a. True b. False 8. Extensional forces normally cause which one of the following? a. Strike-slip faults b. Normal faults c. Reverse faults d. Thrust faults 9. The epicenter of an earthquake is under the surface of the Earth directly on the focus. a. True b. False 10. A ______________ fault has little or no vertical movements of the two blocks. a. Stick-slip b. Oblique slip c. Strike slip d. Dip slip...
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Quiz 5A_answers - 6. The dense core of Earth is thought to...

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