Section #: 10.1 Movement and Storage of Groundwater

Practice Test
  1.According to the figure, what is the lowest part of groundwater storage shown?

  a.   soil moisture  
  b.   zone of aeration  
  c.   water table  
  d.   zone of saturation  
  2.If you were going to make a pond in your backyard, which material would you choose to line the bottom?  
  a.   clay  
  b.   a mixture of sand, silt, and clay  
  c.   sand  
  d.   silt  
  3.The highest percent of porosity is found in __________.  
  a.   impermeable layers  
  b.   poorly sorted sediments  
  c.   well-sorted materials  
  d.   the water table  
  4.What is one possible consequence of excessive withdrawal of groundwater?  
  a.   pollution  
  b.   change in sea level  
  c.   subsidence  
  d.   faulty septic tanks  
  5.How does water get into the ground?  
  a.   condensation  
  b.   precipitation  
  c.   evaporation  
  d.   infiltration  
  6.What can be said about the two figures shown?

  a.   Sample A has greater porosity.  
  b.   Sample B has greater permeability.  
  c.   Sample A is poorly sorted.  
  d.   Sample B holds the most groundwater.  
  7.Soil can hold water because of its __________.  
  a.   porosity  
  b.   permeability  
  c.   poorly sorted material  
  d.   well-sorted material  
  8.What is the largest water supply in the world?  
  a.   ice caps and glaciers  
  b.   rivers and lakes  
  c.   groundwater  
  d.   the ocean  
  9.How does water get into the atmosphere?  
  a.   infiltration  
  b.   condensation  
  c.   precipitation  
  d.   evaporation  
  10.What type of rock has the lowest permeability?  
  a.   shale  
  b.   limestone  
  c.   highly fractured rock  
  d.   sandstone  
  11.What is the largest freshwater supply in the world?  
  a.   groundwater  
  b.   the ocean  
  c.   ice caps and glaciers  
  d.   rivers and lakes  
  12.Water can move through soil because of the soil's __________.  
  a.   permeability  
  b.   porosity  
  c.   well-sorted material  
  d.   impermeable layer  
  13.Groundwater flow takes place through layers called __________.  
  a.   saturated materials  
  b.   aquifers  
  c.   the zone of saturation  
  d.   aquicludes  
  14.Groundwater is __________ percent of the world's water supply.  
  a.   2.15  
  b.   0.009  
  c.   31  
  d.   0.31  
  15.When does groundwater become surface water?  
  a.   when the water table intersects Earth's surface  
  b.   when a new lake or stream is formed  
  c.   when the rock at Earth's surface has high porosity  
  d.   when the zone of saturation is lowered  
  16.The depth of the water table below the surface of land __________.  
  a.   is always found at a depth of 3 m  
  b.   is above the surface of a swamp  
  c.   varies depending on local conditions  
  d.   is deep below a lake or river  

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