Earthquakes

Practice Test
      
  1.What is thought to be the driving mechanism of plate movement?  
  a.   volcanoes  
  b.   conduction of heat in the mantle  
  c.   convection currents in the mantle  
  d.   continental drifting  
      
  2.Identify the subduction zone in the figure.



 
  a.   A  
  b.   B  
  c.   C  
  d.   D  
      
  3.How are the convection currents set in motion?  
  a.   slab push and ridge pull  
  b.   the heat from radioactive decay  
  c.   spreading mid-ocean ridges  
  d.   slab push  
      
  4.What are most earthquakes associated with?  
  a.   divergent plate boundaries  
  b.   rift valleys  
  c.   mid-ocean ridges  
  d.   plate boundaries  
      
  5.Which waves are called body waves?  
  a.   P-waves and surface waves  
  b.   surface waves and S-waves  
  c.   surface waves only  
  d.   P-waves and S-waves  
      
  6.What are shallow, intermediate, and deep earthquake classifications based on?  
  a.   the amount of damage  
  b.   frequency of the largest wave  
  c.   the depth of the focus  
  d.   amplitude of the largest wave  
      
  7.Volcanoes that form far from plate boundaries form as the result of __________.  
  a.   hot spots  
  b.   cinder cones  
  c.   volcanic bombs  
  d.   divergent plate boundaries  
      
  8.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.   gentle-sloped, windward  
  d.   steep-sloped, windward  
      
  9.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.   0 N, 180 W  
  c.   60 N, 120 E  
  d.   30 S, 60 W  
      
  10.What is the shallowest part of the continental margin called?  
  a.   the shelf break  
  b.   the continental rise  
  c.   a submarine canyon  
  d.   the continental shelf  
      
  11.Which wave arrives at a seismic facility first?  
  a.   surface wave  
  b.   P-wave  
  c.   tidal wave  
  d.   S-wave  
      
  12.Which method uses sound waves for remote sensing?  
  a.   Landsat satellite  
  b.   sonar  
  c.   Topex/Poseison satellite  
  d.   GPS  
      
  13.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  
      
  14.__________ push and pull rocks in the same direction along which the waves are traveling.  
  a.   Surface waves  
  b.   Secondary waves  
  c.   Primary waves  
  d.   Shear waves  
      
  15.What is a rating for an earthquake from the modified Mercalli scale based on?  
  a.   its P-wave  
  b.   amount of damage  
  c.   amplitude of the largest wave  
  d.   frequency of the waves  
      
  16.Where do tectonic plates interact?  
  a.   at plate centers  
  b.   at plate boundaries  
  c.   in deep-sea trenches  
  d.   at mid-ocean ridges  
      
  17.According to the map, which part of the country would be best to move to in order to avoid high amounts of wind erosion?



 
  a.   the southeast  
  b.   the northern plains  
  c.   the midwest  
  d.   the northeast  
      
  18.A large ocean wave that is generated by vertical motions of the seafloor during an earthquake is called a(n) __________.  
  a.   upwelling current  
  b.   seiche  
  c.   tidal range  
  d.   tsunami  
      
  19.How does the satellite Topex/Poseidon map ocean features?  
  a.   X rays  
  b.   ultraviolet rays  
  c.   radar  
  d.   visible light  
      
  20.According to the graph, at what depth does the sea floor start to drop off?



 
  a.   4 km  
  b.   2 km  
  c.   8 km  
  d.   1 km  

 
   
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