Practice Test
  1.What is a rating for an earthquake from the modified Mercalli scale based on?  
  a.   amount of damage  
  b.   frequency of the waves  
  c.   its P-wave  
  d.   amplitude of the largest wave  
  2.What is thought to be the driving mechanism of plate movement?  
  a.   convection currents in the mantle  
  b.   continental drifting  
  c.   conduction of heat in the mantle  
  d.   volcanoes  
  3.Which method uses sound waves for remote sensing?  
  a.   sonar  
  b.   GPS  
  c.   Landsat satellite  
  d.   Topex/Poseison satellite  
  4.What is the probability of earthquake occurrence based on?  
  a.   reoccurrence rates of earthquakes in an area and the rate of strain buildup  
  b.   magnitude of P-waves  
  c.   strain buildup only  
  d.   location of foci  
  5.How are the convection currents set in motion?  
  a.   the heat from radioactive decay  
  b.   slab push  
  c.   spreading mid-ocean ridges  
  d.   slab push and ridge pull  
  6.Where do tectonic plates interact?  
  a.   in deep-sea trenches  
  b.   at mid-ocean ridges  
  c.   at plate boundaries  
  d.   at plate centers  
  7.How are submarine canyons formed?  
  a.   longshore current  
  b.   turbidity currents  
  c.   runoff  
  d.   rivers  
  8.How is a volcanic crater connected to a magma chamber?  
  a.   by a vent  
  b.   by tephra  
  c.   by a sill  
  d.   by a hot spot  
  9.Identify the subduction zone in the figure.

  a.   B  
  b.   D  
  c.   C  
  d.   A  
  10.__________ push and pull rocks in the same direction along which the waves are traveling.  
  a.   Primary waves  
  b.   Surface waves  
  c.   Shear waves  
  d.   Secondary waves  
  11.According to the seismogram shown in the figure, which wave is the fastest?

  a.   Surface wave  
  b.   P-wave  
  c.   S-wave  
  d.   Tidal wave  
  12.When is wind-transported material deposited?  
  a.   when the wind changes direction  
  b.   when the wind slows  
  c.   when the particles break apart  
  d.   when the wind becomes stronger  
  13.According to the map, at which latitude and longitude is most likely to experience an earthquake?

Click here for figure

  a.   0 N, 30 W  
  b.   30 S, 60 W  
  c.   0 N, 180 W  
  d.   60 N, 120 E  
  14.Which type of stress pulls a material apart?  
  a.   compression  
  b.   strain  
  c.   tension  
  d.   shear  
  15.How was the volcano cone shown in the figure formed?

  a.   uplifting of mountains before exploding into a volcano  
  b.   material is ejected into the air and falls back to earth  
  c.   a mixture of lava and volcanic fragments  
  d.   layer upon layer of basaltic lava accumulating during nonexplosive eruptions  
  16.The __________ side of a dune is called the __________ side and is located on the side from which the wind blows.  
  a.   steep-sloped, leeward  
  b.   gentle-sloped, leeward  
  c.   steep-sloped, windward  
  d.   gentle-sloped, windward  
  17.What is the study of earthquakes called?  
  a.   cartography  
  b.   seismology  
  c.   geology  
  d.   sedimentology  
  18.What is the electromagnetic spectrum?  
  a.   the arrangement of electromagnetic radiation  
  b.   frequencies measured by satellites  
  c.   energy emitted from Earth  
  d.   visible light  
  19.According to the map, a seismic station in which city would be the first to detect seismic waves from an earthquake occurring in Mexico City?

  a.   Boulder  
  b.   Acapulco  
  c.   Chihuahua  
  d.   Houston  
  20.What breaks mid-ocean ridges into smaller sections?  
  a.   submarine canyons  
  b.   shelf breaks  
  c.   abyssal plains  
  d.   fracture zones  

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