Section #: 16.1 Shoreline Features

Practice Test
      
  1.A groin is used to __________. SC.G.2.4.2  
  a.   interrupt the natural longshore transport of sand  
  b.   provide anchorage for small boats  
  c.   protect the beach from storm waves  
  d.   protect a harbor  
  Hint    
      
  2.__________ are points of land sticking out into the ocean. SC.D.1.4.2  
  a.   Rocky headlands  
  b.   Barrier islands  
  c.   Estuaries  
  d.   Beaches  
  Hint    
      
  3.How much would sea level rise if all the world's polar ice melted? SC.G.2.4.2  
  a.   700 m  
  b.   10 m  
  c.   2 m  
  d.   70 m  
  Hint    
      
  4.What determines the size of sediment particles on a beach? SC.D.1.4.2  
  a.   amount of sediment  
  b.   width of dune  
  c.   tidal range  
  d.   wave energy  
  Hint    
      
  5.Why is water in an estuary commonly brackish?  
  a.   It is a nursery for fish.  
  b.   It's a mixture of freshwater and salt water.  
  c.   It is moved with the longshore current.  
  d.   Its chemistry is affected by sea grasses.  
  Hint    
      
  6.According to the map, what can be said about the coastline over the past 20,000 years?SC.D.1.4.3



 
  a.   It has receded.  
  b.   It has remained the same.  
  c.   It has expanded.  
  d.   it has definitely fluctuated  
  Hint    
      
  7.What is a barrier island? SC.D.1.4.2  
  a.   a narrow bank of sand that crosses a bay  
  b.   a long ridge of sand that is separate from the mainland  
  c.   a narrow bank of sand that projects into the ocean  
  d.   a narrow ridge of sand that connects the mainland and an island  
  Hint    
      
  8.What is the purpose of the structure shown in the figure?  
  a.   to trap beach sand  
  b.   to redirect current  
  c.   to anchor boats  
  d.   to protect the shore  
  Hint    
      
  9.Which structure is pictured in the figure?



 
  a.   breakwater  
  b.   seawall  
  c.   jetty  
  d.   groin  
  Hint    
      
  10.What is a narrow bank of sand that projects into the ocean called? SC.D.1.4.2  
  a.   a lagoon  
  b.   a barrier island  
  c.   a bay mouth bar  
  d.   a spit  
  Hint    
      
  11.Which is NOT a method of building coastal landforms above sea level?  
  a.   upwelling of sediments  
  b.   longshore transportation of sediments at high tide  
  c.   wind-shaping dunes from sediments exposed at low tide  
  d.   storms moving sediments above the high-tide mark  
      
  12.What determines the composition of sediment particles on a beach? SC.D.1.4.2  
  a.   sediment source  
  b.   amount of sediment  
  c.   tidal range  
  d.   wave energy  
  Hint    
      
  13.How much lower was sea level 10,000 years ago? SC.D.1.4.3  
  a.   100 m  
  b.   500 m  
  c.   130 m  
  d.   20 m  
  Hint    
      
  14.What is the purpose of a breakwater?  
  a.   protect a harbor  
  b.   protect the beach from storm waves  
  c.   provide anchorage for small boats  
  d.   interrupt the natural longshore transport of sand  
      
  15.Waves move at __________ velocity in deep water than in shallow water.  
  a.   a slower  
  b.   the same  
  c.   a 100-times-faster  
  d.   a faster  
  Hint    
      
  16.Straight wave crests bend toward headlands because of a process called __________.  
  a.   erosion  
  b.   concentration  
  c.   wave reflection  
  d.   wave refraction  
  Hint    
      
  17.Why is sea level still rising? SC.D.1.4.3  
  a.   global cooling  
  b.   the destruction of ozone in the atmosphere  
  c.   global warming  
  d.   the size of world glaciers is growing  
  Hint    
      
  18.What flat erosion surface is formed as a headland is worn away? SC.D.1.4.2  
  a.   wave-cut platform  
  b.   wave-cut cliff  
  c.   sea arches  
  d.   sea caves  
  Hint    
      
  19.Water movement parallel to shore is called __________.  
  a.   longshore current  
  b.   rip current  
  c.   longshore bar  
  d.   upwelling  
  Hint    

 
   
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