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Exam 16: Groundwater

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Question 61

Multiple Choice

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________ are specific features of karst topography.

A) Streams flowing into depressions and continuing underground
B) Perched water table springs on hillsides
C) Numerous artesian wells in a given area
D) Perennial streams fed by large springs

E) None of the above
F) A) and B)

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Question 62

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During gravity drainage, the portion of the groundwater that is retained on sediment particle and rock fracture surfaces is called the specific yield.

A) True
B) False

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Question 63

Multiple Choice

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________ would be the best medium to naturally remove sewage pollutants.

Which of the following best describes how geysers erupt?

Groundwater is not susceptible to any lasting or persistent pollution because it is turned over and replaced so quickly.

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Provide two reasons why adjacent wells drilled to the same depth might not both encounter water?

Provide two means of dealing with polluted groundwater.

According to Darcy's Law, the product of the hydraulic gradient and permeability in an aquifer is inversely proportional to its porosity.

Speleothems generally form below the water table by calcite precipitation from very hard waters.

Who finally put to rest the false assumption that precipitation could not account for the water in springs and rivers?

The French physicist, Pierre Perrault concluded that groundwater contributed to surface flows by finding rainfall alone was inadequate to account for spring and stream discharge in the Seine River basin.

From the typical hydrologic properties of materials, which would make the best aquifer considering just the water delivery, not its turbidity or chemistry?

A geyser can erupt because the boiling temperature of water decreases with depth below the water table.

The unsaturated zone above the water table is known as the ________.

In areas underlain by unconsolidated or weakly consolidated strata, lowering of the water table by overuse can cause the land to subside.

Of the choices listed below, which would make the best aquifer for water content and delivery?

Of the choices listed on flow characteristics alone, if the following aquifers became contaminated, which would remain contaminated for the longest time?

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

The water table is the boundary between the zone of aeration, where infiltration occurs, and the zone of saturation where the primary groundwater storage and flow occur.