Physical Geology Test 4

Physical Geology

Test 4

13 Dec 2001

  1. Louisiana (not New Orleans) gets most of its drinking water from (a) groundwater (b) the Mississippi River (c) rain cisterns (d) runoff
  2. When rain falls, some of it returns to the atmosphere. This process is called (a) evapotranspiration (b) infiltration (c) runoff (d) sublimation
  3. The boundary below which all pore space in a rock or sediment is saturated with water is called the (a) capillary fringe (b) vadose zone (c) water table (d) zone of aeration
  4. Which of the following is a measure of the ease with which ground water moves through rock and sediment? (a) evapotranspiration (b) gravity (c) permeability (d) porosity
  5. Which of the following is not a reason hot springs and geysers occur? (a) groundwater is heated deep beneath the ground surface and then rises through fractures to the surface (b) hot rock near the ground surface heats the water (c) magmatic intrusions warm the ground water (d) dissolving limestone generates heat that warms the groundwater
  6. Allowing microorganisms to break down pollutants into less harmful forms is called (a) artificial recharge (b) bioremediation (c) hydrolysis (d) pump and treat
  7. The problems of the Everglades includes all of the following except (a) canals that drain the area for sugar farming (b) excessive use of groundwater near the Atlantic coast (c) loss of detrital sediment from river diversions (d) runoff of pesticides and fertilizer from agriculture (e) straightening of meandering streams
  8. Which of the following are not characteristic of karst environments (a) natural bridges (b) disappearing streams (c) playas (d) sinkholes
  9. The Channeled Scablands of Eastern Washington formed from (a) an ancient desert (b) dissolution of limestone (c) floods from the melting of a glacial dam (d) collision of a volcanic arc with the western North America plate
  10. The piles of broken rock and sediment left at the terminus of a glacier after it melts is called a (a) esker (b) moraine (c) moron (d) tombolo
  11. The most recent period of glaciation is known as the (a) Cenozoic (b) Mesozoic (c) Paleozoic (d) Pleistocene
  12. The Gobi Desert in central Asia is an example of a desert formed because of (a) a rain shadow (b) its location in a continental interior (c) its subtropical location (d) the bitter cold at the poles
  13. An ephemeral lake, often highly saline, is called a (a) arroyo (b) bornhardt (c) inselberg (d) playa
  14. When buffalos trample an area, destroying the grass, leading to wind-driven erosion, which of the following does not result? (a) a blowout (b) a buffalo wallow (c) deflation (d) a yardang
  15. America's Dust Bowl was due to all of the following factors except (a) crop management (b) a drought (c) growing a single type of crop year after year (d) the policies of Franklin Roosevelt
  16. The distance from crest to crest between waves is called the (a) wave base (b) wave height (c) wave length (d) trough
  17. Waves are caused mainly by (a) gravitational attraction by the Moon (b) gravitational attraction by the Sun (c) the rotation of the Earth (d) wind
  18. Waves are almost parallel to a beach at the time they break because of (a) inflection (b) longshore currents (c) refraction (d) rip currents
  19. When a swimmer is caught in a rip current, the best thing he or she can do is (a) dive to the bottom and swim beneath it (b) swim as fast as possible straight back towards shore before they get too far out to sea (c) swim at an angle to the current (d) kiss their butt goodbye
  20. In Costa Rica I walked along a black beach. The reason for the color was probably because the beach was made of (a) oil slicks (b) quartz sand (c) shell fragments (d) volcanic fragments
  21. To a geologist, spit means (a) a finger-like ridge of sand, produced by longshore drift, that extends from land into the open water of a bay entrance (b) sand connecting the mainland with a sea stack (c) something to wash down with beer (d) something to wipe from your eye
  22. Grand Isle, LA, is eroding on one end and growing on the other. This is most likely due to (a) longshore currents (b) the placement of Christmas trees (c) politics (d) rising sea level
  23. The main difference between the East Coast and the West Coast of North America is (a) the presence of glaciers only on the East Coast (b) the presence of glaciers only on the West Coast (c) a tectonically active margin on the East Coast but a tectonically passive margin on the West Coast (d) a tectonically active margin on the West Coast but a tectonically passive margin on the East Coast
  24. Which of the following is the most abundant fossil fuel? (a) coal (b) crude oil (c) natural gas (d) uranium
  25. The burning of which of the following contributes the most to sulphuric acid in the atmosphere? (a) coal (b) petroleum (c) propane (d) trees
  26. Which of the following is not a renewable source of energy? (a) hydroelectric energy (b) nuclear energy (c) solar energy (d) tidal power (e) wind power
  27. In Harrison Townes plot of human population growth and crude oil consumption, his main point was (a) as human population grows, we need more energy (b) human population growth is not sustainable (c) the tapping of energy resources has made possible a tremendous expansion of human population (d) we are likely to run out of crude oil by the middle of the 21st century
  28. Which of the following makes the computer modelling of global warming most imprecise? (a) the effects of cloud formation (b) lack of government funding (c) the present speed of computers (d) the statistical data we have about current climatic conditions
  29. A typical source rock for the organic material that is converted to petroleum is (a) coal (b) gypsum (c) sandstone (d) shale
  30. The very earliest geologic time, before there were continents or life and the Earth was very hot, is called (a) the Cenozoic Era (b) the Hadean Eon (c) the Mesozoic Era (d) the Paleozoic Era
  31. Reptiles dominated during (a) the Cenozoic Era (b) the Hadean Eon (c) the Mesozoic Era (d) the Paleozoic Era
  32. Mammals dominated during (a) the Cenozoic Era (b) the Hadean Eon (c) the Mesozoic Era (d) the Paleozoic Era

    True/False: Put A for True and B for False



  33. Water never flows uphill.
  34. For a gravel, a porosity value of 125% is a reasonable value.
  35. The top of a confined aquifer is determined by the location of the water table.
  36. A major source of drinking water in Saudi Arabia and Qatar is desalination of Persian Gulf water.
  37. Caves form near or above the water table.
  38. Milankovitch cycles are used to explain where deserts occur.
  39. Glaciers break down rock and sediments mainly with chemical weathering.
  40. In the desert, mechanical weathering dominates over chemical weathering.
  41. Tides are caused mainly by wind.
  42. Petroleum typically forms from old swamp deposits.
  43. The United States has two-thirds of the world's petroleum reserves.
  44. My sister's name means `` a structure that extends the banks of a channel and confines flow, forcing sediment further out.''
  45. The end of the Mesozoic is marked by the death of the dinosaurs.


    From the slides: We will view slides together in class. The following questions are based on these slides.



  46. The slide shows (a) the Everglades (b) a mangrove swamp (c) plant destruction due to saltwater intrusion (d) a tombolo
  47. The hanging valley I will point to is an example of a (a) arete (b) cirque (c) horn (d) tombolo
  48. In the figure shown, the type of sand dune is (a) barchan (b) longitudinal (c) star (d) transverse
  49. Another name for a wadi, such as is show in the slide, is (a) an arroyo (b) a bornhardt (c) an inselberg (d) a pediment
  50. The triangular feature I will point to in the slide is (a) an alluvial fan (b) a delta (c) a fault (d) a pediment




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On 6 Sep 2002, 11:36.
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