Practice Quiz

NAEP Science Grade 12 - Question List

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71.
The High Plains Aquifer extends from South Dakota to central Texas. Since the early 1900s, the surface of the aquifer has dropped significantly in parts of Texas, Oklahoma, and Kansas. This change in the aquifer is primarily due to which of the following?
  1. A reduction in forest cover from logging that has increased evaporation rates from exposed soils overlying the aquifer.
  2. A shift in climate conditions during the past 100 years that has reduced the water available for aquifer recharge.
  3. The compaction of soils from mechanized farming that has reduced the permeability of soils overlying the aquifer.
  4. The withdrawal of water for agricultural use that has been greater than the aquifer's recharge rate from precipitation.
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72.
The hydraulic conductivity of a sediment is a measure of the rate at which the sediment can transmit water. Which of the following sediments is likely to have the greatest hydraulic conductivity?
  1. A poorly sorted mixture of fine- and medium-sized sand grains
  2. A well-sorted silt deposit
  3. A poorly sorted mixture of clay and small gravel
  4. A well-sorted coarse-sand deposit
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73.
In which of the following test well locations will the depth and location of the well shown in the cross section be most likely to yield a regular and abundant source of groundwater throughout the year?
  1. Test well location I
  2. Test well location II
  3. Test well location III
  4. Test well location IV
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74.
Other than precipitation, which of the following is the most likely direct source of water for the aquifer composed of the medium sand deposit?
  1. Shale
  2. Stream
  3. Fault
  4. Granite
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75.
Which of the following ocean surface water masses is likely to have the greatest density?
  1. Cold and relatively high salinity waters of the North Atlantic Ocean.
  2. Warm and high salinity waters of the Caribbean Sea.
  3. Cold and moderately saline waters of the equatorial eastern Pacific Ocean.
  4. Warm and low salinity waters of the South China Sea.
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