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Multiple Choice



This activity contains 15 questions.

Question 1.
The largest reservoir of freshwater that is available to humans is ____________.

 
End of Question 1


Question 2.
The single most important agent sculpturing Earth's land surface is ____________.

 
End of Question 2


Question 3.
Raising a stream's base level will cause the stream to ____________.

 
End of Question 3


Question 4.
The downslope movement of material under the direct influence of gravity is called ____________.

 
End of Question 4


Question 5.
Loose, undisturbed particles assume a stable slope called the angle of ____________.

 
End of Question 5


Question 6.
During periods when rain does not fall, rivers are sustained by ____________.

 
End of Question 6


Question 7.
Which one of the following would least likely be found in a wide valley?

 
End of Question 7


Question 8.
Along straight stretches, the highest water velocities in a river are near the ____________ of the channel, just below the surface.

 
End of Question 8


Question 9.
The combined effects of ____________ and running water produce stream valleys.

 
End of Question 9


Question 10.
Which one of the following is a measure of a material's ability to transmit water through interconnected pore spaces?

 
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Question 11.
In a typical stream, where gradient is steep, discharge is ____________.

 
End of Question 11


Question 12.
Most natural water contains the weak acid, ____________ acid, which makes it possible for groundwater to dissolve limestone and form caverns.

 
End of Question 12


Question 13.
Most streams carry the largest part of their load ____________.

 
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Question 14.
The great majority of hot springs and geysers in the United States are found in the ____________.

 
End of Question 14


Question 15.
Whenever the water table intersects the ground surface, a natural flow of water, called a(n) ____________, results.

 
End of Question 15





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