GLG

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macher
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54320
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GLG
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2010-12-08 16:13:38
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Environmental Geology
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  1. Atoms that have a variable number of neutrons in their nuclei are regerred to as what?

    A. protons
    B. neutrons
    C. ions
    D. isotopes
    D. isotopes
    (this multiple choice question has been scrambled)
  2. Atoms that have gained or lost electrons in order to achieve a stable configuration in their orbitals are known as what?

    A. protons
    B. isotopes
    C. neutrons
    D. ions
    D. ions
    (this multiple choice question has been scrambled)
  3. What is the name of the positively charged sub-atomic particle in an atom?

    A. ion
    B. neutron
    C. proton
    D. electron
    C. proton
    (this multiple choice question has been scrambled)
  4. What are the two main types of bonding?

    A. ionic and bionic
    B. ionic and isotopic
    C. ionic and covalent
    D. covalent and isotopic
    C. ionic and covalent
    (this multiple choice question has been scrambled)
  5. What is the name of the negatively charged sub-atomic particle in an atom?

    A. neutron
    B. proton
    C. electron
    D. ion
    C. electron
    (this multiple choice question has been scrambled)
  6. Which of the following is not a mineral?

    A. halite
    B. glass
    C. quartz
    D. ice
    B. glass
    (this multiple choice question has been scrambled)
  7. What is specific gravity?

    A. a comparison of a mineral's weight in air and water
    B. the resistance of a mineral to abrasion
    C. the form of crystalline structure that develops due to gravity
    D. a precise measure of a mineral's weight
    A. a comparison of a mineral's weight in air and water
    (this multiple choice question has been scrambled)
  8. What is cleavage?

    A. the crystaline form of a mineral
    B. tendency of a mineral to break along planes of weakness
    C. mineral's resistance to abrasion
    D. comparison of a mineral's weight in air and water
    B. tendency of a mineral to break along planes of weakness
    (this multiple choice question has been scrambled)
  9. Which of the following is not one of the key parts for the definition of a mineral?

    A. inorganic
    B. solid
    C. ionically bonded
    D. naturally-occurring
    C. ionically bonde
    (this multiple choice question has been scrambled)
  10. What mineral resource is used in manufacturing of drywall?

    A. calcite
    B. halite
    C. quartz
    D. gypsum
    D. gypsum
    (this multiple choice question has been scrambled)
  11. What is the principal mineral resource used in manufacturing cement?

    A. gypsum
    B. quartz
    C. calcite
    D. halite
    C. calcite
    (this multiple choice question has been scrambled)
  12. What is the number one material mined from earth by volume?

    A. iron ore
    B. crushed stone
    C. copper
    D. gold
    B. crushed stone
    (this multiple choice question has been scrambled)
  13. Which of the following minerals is commonly used as an abrasive?

    A. calcite
    B. quartz
    C. halite
    D. gypsum
    B. quartz
    (this multiple choice question has been scrambled)
  14. Which of the following minerals is an iron ore?

    A. sphalerite
    B. hematite
    C. pyrite
    D. galena
    B. hematite
    (this multiple choice question has been scrambled)
  15. Which of the following minerals is an lead ore?

    A. sphalerite
    B. galena
    C. hematite
    D. pyrite
    B. galena
    (this multiple choice question has been scrambled)
  16. What is the state mineral of missouri?

    A. diamond
    B. magnetite
    C. galena
    D. calcite
    C. galena
    (this multiple choice question has been scrambled)
  17. What mineral has four directions of cleavage and is used as flux for welding?

    A. calctite
    B. flourite
    C. hematite
    D. halite
    B. flourite
    (this multiple choice question has been scrambled)
  18. What mineral reacts (bubbles) when dilute hydrochloric acid is applied to it (it also has rhombohedral cleavage)?

    A. calcite
    B. flourite
    C. feldspar
    D. quartz
    A. calcite
    (this multiple choice question has been scrambled)
  19. What mineral has a distinctive red-brown streak?

    A. pyrite
    B. sphalerite
    C. hematite
    D. galena
    C. hematite
    (this multiple choice question has been scrambled)
  20. What mineral commonly is referred to as fool's gold?

    A. galena
    B. hematite
    C. sphalerite
    D. pyrite
    D. pyrite
    (this multiple choice question has been scrambled)
  21. What is the name of the scientist who discovered the systematic way in which silicate minerals crystallize from a magma?

    A. moh
    B. muir
    C. leopold
    D. bowen
    D. bowen
    (this multiple choice question has been scrambled)
  22. What are the three main types of rock?

    A. igneous, metamorphic, and sedimentary
    B. igneous, extrusive, and plutonic
    C. igneous, volcanic, and intrusive
    D. igneous, metaphysical and sedimentary
    A. igneous, metamorphic, and sedimentary
    (this multiple choice question has been scrambled)
  23. What does phaneritic mean?

    A. it has two sizes of crystals
    B. you can see the crystals that compose the rock
    C. it essentially groze without froming crystals
    D. you can't see the crystals that compose the rock
    B. you can see the crystals that compose the rock
    (this multiple choice question has been scrambled)
  24. What does porphyritic mean?

    A. you can see the crystals that compose the rock
    B. you can't see the crystals that compose the rock
    C. it essentially groze without froming crystals
    D. it has two sizes of crystals
    D. it has two sizes of crystals
    (this multiple choice question has been scrambled)
  25. What inferences can one make from a rock that has porphyritic texture?

    A. it cooled slowly deep inside the earth
    B. it had two stages of cooling
    C. it was flash frozen as glass
    D. it cooled quickly at the earth's surface
    B. it had two stages of cooling
    (this multiple choice question has been scrambled)
  26. What igneaous rock is phaneritic and mafic?

    A. peridotite
    B. granite
    C. gabbro
    D. basalt
    C. gabbro
    (this multiple choice question has been scrambled)
  27. What igneous rock is aphanitic and felsic?

    A. diorite
    B. rhyolite
    C. basalt
    D. andesite
    B. rhyolite
    (this multiple choice question has been scrambled)
  28. What is the difference between a conglomerate and a breccia?

    A. breccia has larger clasts that conglomerate
    B. breccia is exclusively and igneous rock
    C. breccia has rounded clasts and conglomerate has angular
    D. breccia has angular clasts and conglomerate has rounded
    D. breccia has angular clasts and conglomerate has rounded
    (this multiple choice question has been scrambled)
  29. Which of the main categories of sedimentary rock is associated with the rock gypsum?

    A. chemical
    B. detrital
    C. organic
    D. plutonic
    A. chemical
    (this multiple choice question has been scrambled)
  30. What main category of sedimentary rock is associated with the rock chert?

    A. organic
    B. chemical
    C. detrital
    D. plutonic
    B. chemical
    (this multiple choice question has been scrambled)
  31. What main characteristic is used for classifying detrital rocks, for example conglomerate, sandstone, siltstone, shale?

    A. mineral composition
    B. sorting
    C. rounding
    D. grain size
    D. grain size
    (this multiple choice question has been scrambled)
  32. Of what material is coal composed?

    A. cryptocrystalline quartz
    B. gypsum
    C. carbonized plant debris
    D. calcite
    C. carbonized plant debris
    (this multiple choice question has been scrambled)
  33. What is the name of one chemical contaminents that was mentioned in the movie A civil action?

    A. hexavalent flourine
    B. benzen
    C. trichloroethylene
    D. dioxin
    C. trichloroethylene
    (this multiple choice question has been scrambled)
  34. What mineral has a hardness of 10 on Moh's scale?
    A. quartz
    B. corundum
    C. diamond
    D. topaz
    C. diamond
    (this multiple choice question has been scrambled)
  35. What mineral tastes like salt?

    A. barite
    B. halite
    C. calcite
    D. gypsum
    B. halite
    (this multiple choice question has been scrambled)
  36. What are the two types of luster?

    A. ionic and covalent
    B. metallic and non-metallic
    C. crystalline and amorphous
    D. rock and mineral
    B. metallic and non-metallic
    (this multiple choice question has been scrambled)
  37. Which of the following is not considered to be and agent of metamorphism?

    A. pressure
    B. temperature (heat)
    C. shock
    D. gravity
    D. gravity
    (this multiple choice question has been scrambled)
  38. What type of metamorphism is associated with "the roots of mountains"?

    A. shock metamorphism
    B. contact metamorphism
    C. regional metamorphism
    D. gravitational metamorphism
    C. regional metamorphism
    (this multiple choice question has been scrambled)
  39. Which of the following metamorphic rocks typically is not foliated?

    A. slate
    B. marble
    C. schist
    D. gneiss
    B. marble
    (this multiple choice question has been scrambled)
  40. What is the parent rock of slate?

    A. schist
    B. shale
    C. limestone
    D. quartz sandstone
    B. shale
    (this multiple choice question has been scrambled)
  41. What is the parent rock of marble?

    A. limestone
    B. shale
    C. schist
    D. quartz sandstone
    A. limestone
    (this multiple choice question has been scrambled)
  42. What is the parent rock of quartzite?

    A. shale
    B. limestone
    C. schist
    D. quartz sandstone
    D. quartz sandstone
    (this multiple choice question has been scrambled)
  43. What geologic concept states "the present is the key to the past"?

    A. uniformitarianism
    B. superposition
    C. stratigraphic correlation
    D. original horizontality
    A. uniformitarianism
    (this multiple choice question has been scrambled)
  44. What geologic concept relates that younger strata overlie older strata?

    A. stratigraphic correlation
    B. original horizontality
    C. superposition
    D. uniformitarianism
    C. superposition
    (this multiple choice question has been scrambled)
  45. What geologic principle states that sedimentary rocks generally are deposited on a flat, planar surface and that sediments will extend laterally until they either pinch out or encounter a barrier of some sort?

    A. superposition
    B. original horizontality
    C. uniformitarianism
    D. stratigraphic correlation
    B. original horizontality
    (this multiple choice question has been scrambled)
  46. What geologic concept concerns the matching of tock layers or fossils from one area to another?

    A. uniformitarianism
    B. stratigraphic correlation
    C. original horizontality
    D. superposition
    B. stratigraphic correlation
    (this multiple choice question has been scrambled)
  47. How old is the earth?

    A. 13 Ga
    B. 4.56 Ga
    C. 6.0 kyr
    D. 540 ma
    B. 4.56 Ga
    (this multiple choice question has been scrambled)
  48. Which of the follwoing plate boundaries typically is not associated with volcanoes?

    A. ocean to ocean convergent plate boundary
    B. ocean to ocean divergent plate boundary
    C. continent to continent convergent plate boundary
    D. ocean to continent convergent plate boundary
    C. continent to continent convergent plate boundary
    (this multiple choice question has been scrambled)
  49. What is the name for a failed arm of a triple junction?

    A. hot spot
    B. aulacogen
    C. rift zone
    D. spreading center
    B. aulacogen
    (this multiple choice question has been scrambled)
  50. What is another name for a continent to continenet divergent plate boundary?

    A. spreading center
    B. hot spot
    C. aulacogen
    D. rift zone
    D. rift zone
    (this multiple choice question has been scrambled)
  51. What geographic location is an example of continenet to continent plate convergence?

    A. ethiopia and kenya
    B. himalayan mountains
    C. icelend
    D. japan
    B. himalayan mountains
    (this multiple choice question has been scrambled)
  52. What geographic location is an example of a continental rift zone?

    A. japan
    B. icelend
    C. himalayan mountains
    D. ethiopia and kenya
    D. ethiopia and kenya
    (this multiple choice question has been scrambled)
  53. What geographic location is an example of a mid-ocean ridge spreading center?

    A. icelend
    B. himalayan mountains
    C. japan
    D. ethiopia and kenya
    A. icelend
    (this multiple choice question has been scrambled)
  54. What geographic locatin is an example of ecean to ocean plate convergence?

    A. icelend
    B. ethiopia and kenya
    C. himalayan mountains
    D. japan
    D. japan
    (this multiple choice question has been scrambled)
  55. Who argued that the distributions of glossopteris and lystrosaurus on the southern continents was eidence of continental drift?

    A. ortelius
    B. benioff and wadati
    C. wegener
    D. maury
    C. wegener
    (this multiple choice question has been scrambled)
  56. Who discovered the earthquakes occurred at greater depth away from an oceanic trench near tonga and near japan?

    A. wegener
    B. ortelius
    C. maury
    D. benioff and wadati
    D. benioff and wadati
    (this multiple choice question has been scrambled)
  57. What is an earthquake?

    A. slow movement along a fault
    B. sudden release of seismic energy along a fault
    C. spontaneous build-up of strain in rocks
    D. sudden release of energy associated with intrusions
    B. sudden release of seismic energy along a fault
    (this multiple choice question has been scrambled)
  58. In the earthquake with the largest number of fatalities, how many people were killed?

    A. 80,000
    B. more that 1,000,000
    C. more that 800,000
    D. 8000
    C. more that 800,000
    (this multiple choice question has been scrambled)
  59. Where do earthquakes originate?

    A. foci
    B. epicenters
    C. hotspots
    D. deep in the mantle
    A. foci
    (this multiple choice question has been scrambled)
  60. What type of fault is the san andreas fault?

    A. thrust fault
    B. normal fault
    C. right lateral strike slip fault
    D. reverse fault
    C. right lateral strike slip fault
    (this multiple choice question has been scrambled)
  61. What type of seismic wave travels fastest?

    A. all seismic waves travel the same speed
    B. p wave
    C. surface waves
    D. s wave
    B. p wave
    (this multiple choice question has been scrambled)
  62. What is the name of the area between 1050 and 1400 away from a seismic event, where seismic waves are not recorded?

    A. s wave shadow zone
    B. p wave shadow zone
    C. surface waves shadow zone
    D. all waves would be recorded
    B. p wave shadow zone
    (this multiple choice question has been scrambled)
  63. What is the name of an instrument that records earthquakes?

    a. seismometer
    bh. seismogram
    c. geometer
    d. magnetometer
    a. seismometer
  64. How many seismic stations does it commonly take to determine the epicenter of a seismic event?

    A. more that six
    B. at least one
    C. at least two
    D. at least three
    D. at least three
    (this multiple choice question has been scrambled)
  65. At what speed to tsunamis travel across the open ocean?

    A. 1000 km/sec
    B. tsunamis do not travel across the open ocean
    C. 100 km/hr
    D. 1000 km/hr
    D. 1000 km/hr
    (this multiple choice question has been scrambled)
  66. In the movie erin brockovich what was the overall amount of the settlement distributed among the plaintiffs?

    A. $8 mill
    B. $425 mill
    C. $25 mill
    D. $333 mill
    D. $333 mill
    (this multiple choice question has been scrambled)
  67. Who discovered that the outline of south america fits into west africa?

    A. maury
    B. wegener
    C. benioff and wadati
    D. ortelius
    D. ortelius
    (this multiple choice question has been scrambled)
  68. Which of the following is the least explosive type of volcanic eruption?

    A. vulcanian
    B. strombolian
    C. hawaiian
    D. plinian
    C. hawaiian
    (this multiple choice question has been scrambled)
  69. What type of tectonic setting is associated with volcanoes on the island of Hawaii?

    A. subduction zone
    B. rift zone
    C. spreading center
    D. hot spot
    D. hot spot
    (this multiple choice question has been scrambled)
  70. Which of the following types of volcanoes is the most dangerous to human populations?

    A. shield volcano
    B. cinder cone
    C. traps
    D. stratovolcano
    D. stratovolcano
    (this multiple choice question has been scrambled)
  71. About how many volcanoes are there on earth?

    A. 150,000
    B. 150
    C. 1500
    D. 15,000
    C. 1500
    (this multiple choice question has been scrambled)
  72. What is the main difference between the distribution of earthquake epicenters and volcanoes?

    A. volcanoes do not usually occur along transform or contient to continent convergetn plate boundaries
    B. volcanoes are found only at fivergent plate boundaries
    C. the distribution of earthquake epicenters and volcanoes are indistinguishable
    D. bolcanoes are found only at convergent plate boundaries
    A. volcanoes do not usually occur along transform or contient to continent convergetn plate boundaries
    (this multiple choice question has been scrambled)
  73. What is the nickname for the area of volcanic activity around the pacific ocean?

    A. the land of pele
    B. the ring of fire
    C. the volcanic shadow zone
    D. the dead zone
    B. the ring of fire
    (this multiple choice question has been scrambled)
  74. What is viscosity?

    A. the capacity to flow rapidly
    B. the mount of pore space in a rock
    C. the resistance to flow
    D. the density of rock
    C. the resistance to flow
    (this multiple choice question has been scrambled)
  75. Which of the following hazards poses the greatest volcano related threat to hawaiians?

    A. large lava flows
    B. massive submarine landslides and tsunamis
    C. explosive volcanic eruptions
    D. volcanoes do not pose a threat to the people of hawaii
    B. massive submarine landslides and tsunamis
    (this multiple choice question has been scrambled)
  76. What type of lava flows form underwater?

    A. pillow basalts
    B. sheeted dikes
    C. pahoehoe
    D. Aa
    A. pillow basalts
    (this multiple choice question has been scrambled)
  77. What type of volcanic features form from the interaction of ground water and magma?

    A. rift eruptions
    B. maars
    C. cinder cones
    c. lava deltas
    B. maars
    (this multiple choice question has been scrambled)
  78. What is the name given to fiery volcanic ash clouds that travel downslope during plinian eruptions?

    A. lahars
    B. nuee ardentes
    C. maars
    D. ashfall tuffs
    B. nuee ardentes
    (this multiple choice question has been scrambled)
  79. What if the name fiven to hot volcanic mudflows?

    A. lahars
    B. nuee ardentes
    C. maars
    D. ashfall tuffs
    A. lahars
    (this multiple choice question has been scrambled)
  80. The eruption of what volcano in 1815 was associated with the year without a summer?

    A. krakatoa
    B. tambora
    C. toba
    D. vesuvius
    B. tambora
    (this multiple choice question has been scrambled)
  81. The eruption of what volcano in 1883 was associated with the tsunami that struck java?

    A. vesuvius
    B. krakatoa
    C. toba
    D. tambora
    B. krakatoa
    (this multiple choice question has been scrambled)
  82. Which of the following is not considered a supervolcano?

    A. mauna loa
    B. taupo
    C. toba
    D. yellowstone
    A. mauna loa
    (this multiple choice question has been scrambled)
  83. Newspapers commonly report mass wasting events as what?

    A. rock slides
    B. landslides
    C. landfalls
    D. debris flows
    B. landslides
    (this multiple choice question has been scrambled)
  84. What type of mass wasting event involves rock material flowing rapidly?

    A. creep
    B. rock fall
    C. rock flow
    D. rock avalanche
    D. rock avalanche
    (this multiple choice question has been scrambled)
  85. What is the critical angle of repose for clean dry well rounded fine sand?

    A. 250
    B. 340
    C. 450
    D. 300
    B. 340
    (this multiple choice question has been scrambled)
  86. What force must be overcome to initiate a mass wasting event?

    A. critical angle of repose
    B. centrifugal force
    C. coefficient of friction
    D. gravity
    C. coefficient of friction
    (this multiple choice question has been scrambled)
  87. What type of mass wasting event involves rock and debris material flowing slowly downhill?

    A. rock flow
    B. creep
    C. rock avalanche
    D. rock fall
    B. creep
    (this multiple choice question has been scrambled)
  88. What type of processes are acive in keeping a rick avalanche flowing?

    A. liquifaction and gravity
    B. dispersive pressure and acoustic fluidization
    C. dispersive pressure and liquifaction
    d. none of the above
    B. dispersive pressure and acoustic fluidization
    (this multiple choice question has been scrambled)
  89. What city in the united states spends more money per capita dealing with mass wasting events?

    A. miami, florida
    B. knoxville, tennessee
    C. cincinnati, ohio
    D. los angeles, california
    C. cincinnati, ohio
    (this multiple choice question has been scrambled)
  90. What is the name of the flooding phenomenon that affects venice?

    A. subduction
    B. agua alto
    C. thermal subsidence
    D. capillary action
    B. agua alto
    (this multiple choice question has been scrambled)
  91. What are the two types of weathering?

    A. mafic and felsic
    B. igneous and metamorphic
    C. detrital and chemical
    D. mechanical and chemical
    D. mechanical and chemical
    (this multiple choice question has been scrambled)
  92. Which of the following processes is associated with the action of carbon dioxide and carbonic acid on carbonate rocks?

    A. osication
    B. hydrolysis
    C. dissolution
    D. hydration
    C. dissolution
    (this multiple choice question has been scrambled)
  93. Which of the following silicate minerals is least susceptible to weather?

    A. feldspar
    B. olivine
    C. mica
    D. quartz
    D. quartz
    (this multiple choice question has been scrambled)
  94. What is the state soil of missouri?

    A. springfield soil
    B. jefferson city soil
    C. loess
    D. menfro soil
    D. menfro soil
    (this multiple choice question has been scrambled)
  95. In the idealized soild profile what is the typical structure from bottom to the surface?

    A. bedrock, rogolity, c horizon, b horizon, a horizon, o horizon
    B. bedrock, regolith, a horizon, b horizon, c horizon, o horizon
    C. bedrock, regolith, c horizon, b horizon, o horizon, a horizon
    D. bedrock, rogolith, a horizon, b horizon, o horizon, c horizon
    A. bedrock, rogolity, c horizon, b horizon, a horizon, o horizon
    (this multiple choice question has been scrambled)
  96. What was the name of the historical event that resulted in major changes in agricultural practices?

    A. great depression
    B. new deal
    C. world war II
    D. dust bowl
    D. dust bowl
    (this multiple choice question has been scrambled)
  97. At the time of filming the movie an inconvenient truth what proportion of carbon dioxide was produced annually by the united states?

    A. one tenth
    B. one half
    C. one fourth
    D. nearly all of it
    C. one fourth
    (this multiple choice question has been scrambled)
  98. Which of the following is not considered to be a greenhouse gas?

    a methane
    b. carbon dioxide
    c. water vapor
    d. argon
    d. argon
  99. Which of the following statements about the greenhouse effect is incorrect?

    A. excess heat is trapped in earths atmosphere
    B. carbon dioxide and other greenhouse gasses have accumulated in earths atmosphere
    C. excess heat in the atmosphere appears to be causing glaciers to melt
    D. an ozone hole has opened in the polar regions as a result of the greenhouse effect
    D. an ozone hole has opened in the polar regions as a result of the greenhouse effect
    (this multiple choice question has been scrambled)
  100. Who won an oscar for his appearance in the movie an inconvenient truth?

    a george bush
    b. al gore
    c. bill clinton
    d. dick cheney
    b. al gore
  101. Which of the following processes are not considered to be an imortant part of the hydrologic cycle

    A. sublimation
    B. run off
    C. precipitation
    D. condensation
    A. sublimation
    (this multiple choice question has been scrambled)
  102. Which of the following human induced agents can greatly affect water quality?

    a. fertilizers
    b. herbicides
    c. pesticides
    d. all of the above
    d. all of the above
  103. What lake holds about 20% of earth's surface fresh water?

    A. lake baikal
    B. lake superior
    C. lake victoria
    D. lake of the ozarks
    A. lake baikal
    (this multiple choice question has been scrambled)
  104. What is stream discharge?

    A. the volume of flow past a given point over a given period of time
    B. a stream's resistance to flow
    C. the total volume of water held by a stream
    D. the amount of elevation loss over a given distance
    A. the volume of flow past a given point over a given period of time
    (this multiple choice question has been scrambled)
  105. Which of the following characteristics are typically not associated with youthfull streams?

    A. high gradient
    B. erosion is the dominant geologic process
    C. variable discharge
    D. development of a floodplain
    D. development of a floodplain
    (this multiple choice question has been scrambled)
  106. What federal agency eventually forced clean up of areas around wells G and H in woburn massachussetts?

    A. noaa
    B. nps
    C. epa
    D. usgs
    C. epa
    (this multiple choice question has been scrambled)
  107. What movie was based on the environmental catastrophe at woburn massachusetts?

    A. an inconvenient truth
    B. erin brockovich
    C. a civil action
    D. silkwood
    C. a civil action
    (this multiple choice question has been scrambled)
  108. What was the principal contaminant in woburn massachusetts?

    A. dioxin
    B. polychloroethylene (pce)
    C. chromium (cr+6)
    D. tricholorethylene (tce)
    D. tricholorethylene (tce)
    (this multiple choice question has been scrambled)
  109. What was the principal contaminant in hinkley california?

    A. chromium (cr+6)
    B. tricholorethylene (tce)
    C. dioxin
    D. polychloroethylene (pce)
    A. chromium (cr+6)
    (this multiple choice question has been scrambled)
  110. What company was held responsible in the civil case at hindley california?

    A. pacific gas and electric (pg&e)
    B. w.r. grace
    C. beatrice foods
    D. occidental petroleum
    A. pacific gas and electric (pg&e)
    (this multiple choice question has been scrambled)
  111. What movie was based on the environmental catastrophe at hinkley california?

    A. erin brockovich
    B. a civil action
    C. silkwood
    D. an inconvenient truth
    A. erin brockovich
    (this multiple choice question has been scrambled)
  112. What was the principal contaminant in times beach missouri?

    A. polychloroethylene (pce)
    B. chromium (cr+6)
    C. dioxin
    D. tricholorethylene (tce)
    C. dioxin
    (this multiple choice question has been scrambled)
  113. The lack of what trace element as a dietary supplement can lead to hyperthyroidism?

    A. selenium
    B. flouride
    C. iodine
    D. arsenic
    C. iodine
    (this multiple choice question has been scrambled)
  114. What is the naturally toxic trace element that has commonly been found in bangladesh and in semi arid southwest united states?

    A. flouride
    B. iodine
    C. arsenic
    D. selenium
    C. arsenic
    (this multiple choice question has been scrambled)
  115. What type of artificially constructed features help to protect coastlines and prevent beach loss?

    A. coral reefs
    B. barrier islands
    C. wave cut terraces
    D. groins
    D. groins
    (this multiple choice question has been scrambled)
  116. What is the water depth where wave orbitals impinge on the sea floor?

    A. 120 meters
    B. 2 meters
    C. one half the wavelength
    D. 10 meters
    C. one half the wavelength
    (this multiple choice question has been scrambled)
  117. What is the name of the equipotential gravitational surface that is responsible for the height of water in the world's oceans?

    hydraulic head
    b. geoid
    c. subsidence
    d. tides
    b. geoid
  118. When do neap tides occur?

    A. during waxing and waning crescent moon phases
    B. during first and third quarter moon phases
    C. during waxing and waning gibbous moon phases
    D. during full and new moon phases
    B. during first and third quarter moon phases
    (this multiple choice question has been scrambled)
  119. What effect do winter storms have on coastal beaches in california?

    A. they tend to move sand onshore increasing the sizes of beaches
    B. they tend to move sand offshore decreasing the sizes of beaches
    C. they have little effect on the beaches
    D. they tend to move sand toward the south or south by longshore drift
    B. they tend to move sand offshore decreasing the sizes of beaches
    (this multiple choice question has been scrambled)
  120. What type of geologic structure is shown in the diagram below?

    a. basin
    b. dome
    a. basin
  121. Which of the following is not considered to be a rule for interpreting geolofic structures?

    A. synclines plunge in the direction they open
    B. the limbs of an anticline dip away from the axial plane
    C. older beds dip toward younger beds
    D. anticlines plunge in the firection they open
    D. anticlines plunge in the firection they open
    (this multiple choice question has been scrambled)
  122. What type of material behavior is associated with floding?

    A. ductile
    B. brittle
    C. elastic
    d. none of the above
    A. ductile
    (this multiple choice question has been scrambled)
  123. Which of the following is most commonly associated with accumulations of oil and gas in the subsurface?

    a. basins and synclines
    b. domes and anticlines
    b. domes and anticlines
  124. How many US gallons are in a barrel of oil?

    A. 42 gallons
    B. 55 gallons
    C. 30 gallons
    D. 5 gallons
    A. 42 gallons
    (this multiple choice question has been scrambled)

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