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ConcepTest: Water Supply Contamination part of Examples
A farmer drilled a well into an open aquifer composed of sand and gravel. He installed a septic system downslope from the drinking well (see diagram). A few years later the septic system started to leak. Water ...

ConcepTest: Groundwater Production Potential part of Examples
The cross section below simplifies the groundwater sources in a county in a Midwest state. Which location would have the potential for the best groundwater production? a. A b. B c. C d. D

ConcepTest: Topography and Water Table part of Examples
The four schematic cross sections below show the potential groundwater resources for an area of hills and valleys. Assume the region receives plentiful rainfall and is in underlain by an open aquifer composed of ...

ConcepTest: Streamflow Velocity Change After Channel is Narrowed part of Examples
A stream channel is narrowed by bridge construction. How will the velocity of flow change if the depth and discharge of the stream remain constant? a. velocity will increase b. velocity will decrease c. velocity ...

ConcepTest: Stream Discharge Gauges #2 part of Examples
Four stream gauging station locations are shown on the adjacent map (A, B, C, D). Assume the bedrock and topography is similar for each stream system. Predict which station is most likely to record the least ...

ConcepTest: Stream Discharge Gauges #1 part of Examples
Four stream gauging station locations are shown on the adjacent map (A, B, C, D). Assume the bedrock and topography is similar for each stream system. Predict which station will record the greatest discharge? a. A ...

ConcepTest: Stream Diversion Structure #1 part of Examples
The town of Pleasantville is located at a meander bend in a floodplain. In order to reduce the threat of property loss due to erosion, Pleasantville's engineer proposes the construction of the diversion ...

ConcepTest: Relationship Between Stream Discharge, Depth and Velocity part of Examples
A stream channel is widened by erosion, but stream discharge is unchanged. Which of the following statements must be true? a. depth increased and/or velocity increased b. depth decreased and/or velocity increased ...

ConcepTest: Natural Response to City Growth part of Examples
A rapidly growing city within a humid climate zone experiences a land use change from predominantly crop land to mostly urban/suburban. A likely natural response would be: a. Increased infiltration—reduced ...

ConcepTest: Infiltration Rate part of Examples
Which soil and topography conditions will have the greatest infiltration rate? a. Sandy soil and steep slope b. Clay soil and flat land c. Sandy soil and gentle slope d. Clay soil and steep slope

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