Practice Test
  1.What type of volcano forms from alternating layers of tephra and nonexplosive lava?  
  a.   cinder cone  
  b.   shield volcano  
  c.   composite volcano  
  d.   caldera  
  2.According to the map, at which latitude and longitude is most likely to experience an earthquake?

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  a.   30 S, 60 W  
  b.   0 N, 30 W  
  c.   0 N, 180 W  
  d.   60 N, 120 E  
  3.According to the graph, what is the approximate depth range of ocean basins?

  a.   1 km to 4 km  
  b.   6 km to 8 km  
  c.   8 km to 10 km  
  d.   2 km to 4 km  
  4.__________ causes permanent strain.  
  a.   Elastic deformation  
  b.   Ductile deformation  
  c.   Tension  
  d.   Compression  
  5.How many times larger is a magnitude 3 than a magnitude 1 earthquake on the Richter scale?  
  a.   1/10 times  
  b.   10 times  
  c.   100 times  
  d.   100 000 times  
  6.The map shows where the continents are likely to move in the next 50 million years. The shaded area represents their present position. According to the data on this map, what kind of boundary is found between the Americas and Africa?

  a.   convergent  
  b.   transform  
  c.   divergent  
  d.   subduction  
  7.What breaks mid-ocean ridges into smaller sections?  
  a.   submarine canyons  
  b.   shelf breaks  
  c.   fracture zones  
  d.   abyssal plains  
  8.What are large, angular fragments thrown from a volcano called?  
  a.   volcanic blocks  
  b.   lapilli  
  c.   volcanic bombs  
  d.   ash  
  9.The process of collecting data far above Earth's surface is called __________.  
  a.   topographic studies  
  b.   electromagnetic sensing  
  c.   mapmaking  
  d.   remote sensing  
  10.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  
  11.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  
  12.What is a rating from the Richter scale based on?  
  a.   wavelength of the waves  
  b.   frequency of the waves  
  c.   damage from the largest wave  
  d.   size of the largest wave  
  13.What is thought to be the driving mechanism of plate movement?  
  a.   continental drifting  
  b.   conduction of heat in the mantle  
  c.   convection currents in the mantle  
  d.   volcanoes  
  14.What does GPS stand for?  
  a.   Global Potential Satellite  
  b.   Global Positioning System  
  c.   Geographic Positioning System  
  d.   Geodial Position Satellite  
  15.Which wave arrives at a seismic facility first?  
  a.   tidal wave  
  b.   P-wave  
  c.   S-wave  
  d.   surface wave  
  16.The lowering of the land surface due to wind removing particles is called __________.  
  a.   deflation  
  b.   saltation  
  c.   abrasion  
  d.   erosion  
  17.Use the graph to determine how long it took for S-waves to reach Station B after the earthquake.  
  a.   20 minutes  
  b.   30 minutes  
  c.   5 minutes  
  d.   10 minutes  
  18.What are most earthquakes associated with?  
  a.   mid-ocean ridges  
  b.   rift valleys  
  c.   divergent plate boundaries  
  d.   plate boundaries  
  19.Where do tectonic plates interact?  
  a.   at plate centers  
  b.   at plate boundaries  
  c.   in deep-sea trenches  
  d.   at mid-ocean ridges  
  20.How are dunes classified?  
  a.   type of particles  
  b.   side  
  c.   shape  
  d.   climate of location  

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