Practice Test
  1.What is a rating from the Richter scale based on?  
  a.   frequency of the waves  
  b.   wavelength of the waves  
  c.   damage from the largest wave  
  d.   size of the largest wave  
  2.Which of the sand dunes in the figure accumulates in areas with very little sand?

  a.   b  
  b.   a  
  c.   c  
  d.   d  
  3.According to the graph, at what depth does the sea floor start to drop off?

  a.   4 km  
  b.   8 km  
  c.   1 km  
  d.   2 km  
  4.Which type of fault results in horizontal shortening?  
  a.   shear  
  b.   normal  
  c.   reverse  
  d.   strike-slip  
  5.What two things does the appearance of a volcano depend on?  
  a.   type of eruption and latitude  
  b.   type of material and eruption  
  c.   type of material and viscosity  
  d.   type of eruption and temperature of the lava  
  6.What is the water content in the magma that fuels the volcano shown in the figure?

  a.   water completely absent  
  b.   more water  
  c.   less water  
  d.   average water  
  7.What is Earth's core composed of?  
  a.   hydrogen and iron  
  b.   nickel and silicon  
  c.   magnesium and silicon  
  d.   iron and nickel  
  8.How does a Landsat satellite differentiate between objects on Earth's surface?  
  a.   Landsat uses a single detector to measure the intensities of energy.  
  b.   Features on Earth radiate warmth at different frequencies, which show up as different colors on Landsat images.  
  c.   Landsat measures the longest frequencies of electromagnetic radiation from Earth.  
  d.   Landsat satellites take pictures using visible light.  
  9.The __________ states that Earth's crust and ridged upper mantle are broken into plates that move at different rates and in different directions.  
  a.   theory of plate tectonics  
  b.   theory of seafloor spreading  
  c.   hypothesis of continental drift  
  d.   hypothesis of continental movement  
  10.Where do tectonic plates interact?  
  a.   at plate boundaries  
  b.   at mid-ocean ridges  
  c.   in deep-sea trenches  
  d.   at plate centers  
  11.How are the convection currents set in motion?  
  a.   slab push and ridge pull  
  b.   spreading mid-ocean ridges  
  c.   the heat from radioactive decay  
  d.   slab push  
  12.According to the graph, what is the approximate depth range of ocean basins?

  a.   6 km to 8 km  
  b.   2 km to 4 km  
  c.   8 km to 10 km  
  d.   1 km to 4 km  
  13.Why are three circles needed to determine the epicenter, as shown in the figure?

  a.   The more measurements, the better.  
  b.   Scientists always take measurements in threes.  
  c.   The epicenter can move.  
  d.   If only two circles are used, there are two possible locations.  
  14.When is wind-transported material deposited?  
  a.   when the wind slows  
  b.   when the particles break apart  
  c.   when the wind changes direction  
  d.   when the wind becomes stronger  
  15.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  
  16.What is the study of earthquakes called?  
  a.   seismology  
  b.   geology  
  c.   cartography  
  d.   sedimentology  
  17.According to the map, at which latitude and longitude is most likely to experience an earthquake?

Click here for figure

  a.   30 S, 60 W  
  b.   60 N, 120 E  
  c.   0 N, 180 W  
  d.   0 N, 30 W  
  18.How does the satellite Topex/Poseidon map ocean features?  
  a.   visible light  
  b.   ultraviolet rays  
  c.   radar  
  d.   X rays  
  19.A large ocean wave that is generated by vertical motions of the seafloor during an earthquake is called a(n) __________.  
  a.   upwelling current  
  b.   tidal range  
  c.   seiche  
  d.   tsunami  
  20.__________ causes permanent strain.  
  a.   Ductile deformation  
  b.   Tension  
  c.   Compression  
  d.   Elastic deformation  

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