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2019 Exam 4 Question
GLG 201
| Term | Definition |
|---|---|
| Exam 4 18. Energy waves that are released during an earthquake are called A) shock waves. B) elastic waves. C) stress waves. D) seismic waves. | D) seismic waves. |
| E4 19. Which of the following correctly lists the order in which seismic waves arrive at a seismograph station? A) P waves, surface waves, S waves B) P waves, S waves, surface waves C) S waves, P waves, surface waves D) surface waves, P waves, S wave | B) P waves, S waves, surface waves |
| Exam 4 20. Which of the following types of waves is a compressional sound wave? A) P waves B) S waves C) surface waves D) all of the above | A) P waves |
| 21. Which of the following statements about earthquakes is true? A) Earthquakes can be caused by normal, reverse, and strike-slip faulting B) Most earthquakes occur in intraplate settings. | A) Earthquakes can be caused by normal, reverse, and strike-slip faulting |
| Exam 4 22. Shallow earthquakes, less than 20 km deep, are associated with A) convergent plate boundaries. B) transform plate boundaries. C) divergent plate boundaries. D) convergent, transform, and divergent plate boundaries | D) convergent, transform, and divergent plate boundaries |
| Exam 4 23. Earthquakes that originate at depths greater than 100 km are associated with ______ plate boundaries. A) convergent B) transform C) divergent D) convergent, divergent, and transform | A) convergent |
| Exam 4 25. Shallow, intermediate, and deep-focus earthquakes occur at A) divergent plate boundaries. B) transform plate boundaries. C) hot spots. D) convergent plate boundaries | D) convergent plate boundaries |
| Exam 4 26. The largest earthquakes occur at A) transform boundaries. B) intraplate settings. C) convergent boundaries. D) divergent boundaries | C) convergent boundaries. |
| Exam 4 27. A seismic observatory typically has instruments that measure ______ motion(s). A) up-down B) horizontal north-south C) horizontal east-west D) up-down, horizontal north-south, and horizontal east-west | D) up-down, horizontal north-south, and horizontal east-west |
| Exam 4 28. What type of information do seismographs give about an earthquake? A) the location B) the magnitude C) the fault mechanism D) all of the above | B) the magnitude |
| Exam 5 1. Evidence for the internal structure of Earth is mostly based on A) heat flow measurements. B) waves generated by earthquakes. C) the existence of a magnetic field. D) deep mines and drilling | B) waves generated by earthquakes. |
| Exam 5 2. Continental crust beneath mountains can be up to ___ kilometers thick. A) 10 B) 40 C) 70 D) 100 | C) 70 |
| Exam 5 3. How thick is the oceanic crust? A) approximately 7 km B) approximately 70 km C) approximately 35 km D) approximately 240 km | A) approximately 7 km |
| Exam 5 4. Which of the following seismic waves will arrive at a seismograph first? A) P B) S C) PP D) SS | A) P |
| Exam 5 5. Which layer in Earth does not transmit S waves? A) the crust B) the inner core C) the mantle D) the outer core | B) the inner core |
| 6. Where, inside Earth, is the largest change in material density? A) base of the crust B) base of the lithosphere C) core-mantle boundary D) outer core-inner core boundary | C) core-mantle boundary |
| E5 7. Which of the following statements about Earth's core is true? C) The inner core is liquid and the outer core is solid. D) The inner core is solid and the outer core is liquid. | C) The inner core is liquid and the outer core is solid. |
| Exam 5 8. What element makes up most of Earth's core? A) iron B) oxygen C) magnesium D) silicon | A) iron |
| Exam 5 9. Over geologic time, most of the heat lost from Earth's interior has been transported by A) conduction. B) convection. C) radioactive decay. D) solar radiation | B) convection. |
| Exam 5 11. What process generates Earth's magnetic field? A) Earth's rotation B) the magnetic stripes on the seafloor when it moves C) flow in the outer core D) movement of the continents that drag the magnetic poles with | D) movement of the continents that drag the magnetic poles with |
| Exam 5 21. Which of the following statements about mudflows is false? A) Mudflows tend to move slower than debris flows. B) Mudflows are most common in semiarid regions. C) Mudflows contain large amounts of water. D) Mudflows can carry large boulder | A) Mudflows tend to move slower than debris flows. |
| Exam 5 23. As the velocity of a stream current increases, A) more of the bed material is in motion. B) progressively finer particles are suspended. C) the suspended load decreases. D) total capacity decreases | A) more of the bed material is in motion. |
| Exam 5 24. Which of the following particles is the most easily eroded from the bed of a stream? A) boulders B) cohesive clay C) pebbles D) sand | D) sand |
| Exam 5 25. Which of the following materials is most likely to be transported as a suspended load? A) boulders B) clay C) gravel D) sand | B) clay |
| Exam 5 26. Curves and bends in a stream channel are called A) alluvial fans. B) braids. C) deltas. D) meanders | D) meanders |
| Exam 5 27. At a bend in a river, ______ occurs on the outside of the bend and ______ occurs on the inside of the bend. A) deposition; deposition B) erosion; deposition C) deposition; erosion D) erosion; erosion | B) erosion; deposition |
| Exam 5 28. In which of the following locations would one most likely find a braided stream? A) at the edge of a melting glacier B) on a gently sloping plain of fine-grained sediment C) in a narrow gorge cut into the bedrock D) in/on all of the above | A) at the edge of a melting glacier |
| Exam 5 29. The volume of water flowing past a given point in a given time is called the A) capacity. B) competence. C) discharge. D) viscosity | C) discharge. |
| Exam 5 31. Which of the following depositional settings consists primarily of fine-grained silt and mud? A) stream channels B) floodplains C) natural levees D) point bar | B) floodplains |
| Exam 5 32. For a given river, which of the following floods would have the largest discharge? A) a 5-year flood B) a 20-year flood C) a 100-year flood D) Impossible to tell from the information provide | C) a 100-year flood |
| Exam 4 40. What powers the hydrologic cycle? A) magnetism B) mantle convection C) radioactive decay D) solar energy | D) solar energy |
| Exam 4 41. The largest freshwater reservoir in the hydrologic cycle is A) the atmosphere. B) groundwater. C) glaciers. D) the biosphere | C) glaciers. |
| Exam 4 42. Layers that transmit groundwater are called A) aquicludes. B) aquifers. C) influent streams. D) unsaturated zones | B) aquifers. |
| Exam 4 43. Which of the following unfractured rocks has the highest porosity? A) granite B) sandstone C) schist D) shale | B) sandstone |
| Exam 4 45. In the unsaturated zone, pore spaces in the soil and rock contain A) air. B) water. C) air and water. D) neither air nor water | C) air and water |
| Exam 4 47. Which of the following represents the boundary between the saturated zone and the unsaturated zone? A) aquifer B) aquiclude C) groundwater table D) porosity | C) groundwater table |
| Exam 4 48. If the amount of discharge in an aquifer exceeds the amount of recharge, the groundwater table A) will rise. B) will drop. C) will remain the same. D) may rise or drop depending on the permeability | B) will drop |
| Exam 4 49. Sinkholes are a possible danger in regions underlain by what type of bedrock? A) granite B) limestone C) sandstone D) shale | B) limestone |
| Exam 4 50. Potable water is a term that covers all A) groundwater. B) drinkable water. C) hydrothermal water. D) seawater | B) drinkable water |
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isabellaallen
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