Question 1

Primary porosity would probably be the greatest in which of the following?

Accepted Answer

A)  Well- sorted, coarse- grained sediment. 
B)  Fine, clayey mud. 
C)  Well- cemented, sedimentary rock. 
D)  Angular- grained, sedimentary rock. 
A)  Well- sorted, coarse- grained sediment. 
B)  Fine, clayey mud. 
C)  Well- cemented, sedimentary rock. 
D)  Angular- grained, sedimentary rock.

Question 2

Withdrawal of groundwater has produced the most severe subsidence in:

Accepted Answer

A)  Las Vegas. 
B)  Mexico City. 
C)  New Orleans. 
D)  Central California. 
A)  Las Vegas. 
B)  Mexico City. 
C)  New Orleans. 
D)  Central California.

Question 3

How do collapse sinkholes form?

Accepted Answer

Roof collapse of caves can form collapse

Question 4

Cross sections of speleothems reveal an ancient ice age because:

Accepted Answer

A)  speleothems do not grow when a cave is overlain by a sheet of ice. 
B)  speleothems produce thicker concentric layers when the cave is affected by an ice age. 
C)  darker layers within a speleothem represent periods of colder climate. 
D)  some of the concentric layers within a speleothem contain pockets caused by ice formation. 
A)  speleothems do not grow when a cave is overlain by a sheet of ice. 
B)  speleothems produce thicker concentric layers when the cave is affected by an ice age. 
C)  darker layers within a speleothem represent periods of colder climate. 
D)  some of the concentric layers within a speleothem contain pockets caused by ice formation.

Question 5

The desalinization of seawater is an uncommon way to relieve water shortages even in areas near the ocean because:

Accepted Answer

A)  desalinization technology is still in its infant stages. 
B)  it is usually not economically feasible. 
C)  sufficient quantities of water cannot be produced. 
D)  it would upset the global hydrologic cycle. 
A)  desalinization technology is still in its infant stages. 
B)  it is usually not economically feasible. 
C)  sufficient quantities of water cannot be produced. 
D)  it would upset the global hydrologic cycle.

Question 6

Which of the following statements concerning collapse sinkholes is NOT true?

Accepted Answer

A)  Excessive withdrawal of groundwater by communities may initiate sinkhole formation. 
B)  They are usually more shallow than solution sinkholes, and their sides are more gently sloping. 
C)  A sinkhole may form where soil has filtered down into a cave, leaving overlying soil voids. 
D)  Excessive weight of wet soil may cause caverns to collapse, forming a sinkhole. 
A)  Excessive withdrawal of groundwater by communities may initiate sinkhole formation. 
B)  They are usually more shallow than solution sinkholes, and their sides are more gently sloping. 
C)  A sinkhole may form where soil has filtered down into a cave, leaving overlying soil voids. 
D)  Excessive weight of wet soil may cause caverns to collapse, forming a sinkhole.

Question 7

Cave pearls have a round shape because:

Accepted Answer

A)  erosion tends to remove any edges or corners. 
B)  the crystalline structure of travertine is spherical. 
C)  they form in agitated pools that keep the pearl in motion. 
D)  they develop on smooth, round sand grains. 
A)  erosion tends to remove any edges or corners. 
B)  the crystalline structure of travertine is spherical. 
C)  they form in agitated pools that keep the pearl in motion. 
D)  they develop on smooth, round sand grains.

Question 8

What is the relationship between local topography and bodies of surface water and the level of the water table?

Accepted Answer

The configuration of the water table rou

Question 9

All of the following statements about disappearing streams are true EXCEPT:

Accepted Answer

A)  they seldom meander. 
B)  they present serious flooding problems when sinkholes become plugged. 
C)  they drain completely into sinkholes. 
D)  they may return to the surface as natural springs. 
A)  they seldom meander. 
B)  they present serious flooding problems when sinkholes become plugged. 
C)  they drain completely into sinkholes. 
D)  they may return to the surface as natural springs.

Question 10

The instrument water witches use to locate underground water is called a:

Accepted Answer

A)  shovel. 
B)  forked stick. 
C)  long pipe. 
D)  well driller. 
A)  shovel. 
B)  forked stick. 
C)  long pipe. 
D)  well driller.

Question 11

Describe the methods that are used to find groundwater sources.

Accepted Answer

Finding groundwater depends on knowledge

Question 12

Which of the following methods of enhanced recharge is used by Denver and New York City?

Accepted Answer

A)  Interbasin transfer. 
B)  Intrastate transfer. 
C)  Injecting lake water into the ground. 
D)  Building recharge basins. 
A)  Interbasin transfer. 
B)  Intrastate transfer. 
C)  Injecting lake water into the ground. 
D)  Building recharge basins.

Question 13

Groundwater sometimes flows upward against gravity because:

Accepted Answer

A)  the pressure from overlying water and surrounding rocks forces groundwater to flow in specific directions. 
B)  groundwater is not governed by the same physical laws as surface water. 
C)  groundwater is pulled by the flow of overlying surface water. 
D)  oversaturation occurs within the zone of saturation. 
A)  the pressure from overlying water and surrounding rocks forces groundwater to flow in specific directions. 
B)  groundwater is not governed by the same physical laws as surface water. 
C)  groundwater is pulled by the flow of overlying surface water. 
D)  oversaturation occurs within the zone of saturation.

Question 14

Grading steep slopes can enhance groundwater recharge because such a measure:

Accepted Answer

A)  reduces the runoff from precipitation. 
B)  reduces the depth of the water table. 
C)  removes impermeable materials. 
D)  reduces the hydraulic gradient of the groundwater. 
A)  reduces the runoff from precipitation. 
B)  reduces the depth of the water table. 
C)  removes impermeable materials. 
D)  reduces the hydraulic gradient of the groundwater.

Question 15

Approximately what percentage of the United States is karst land?

Accepted Answer

A)  35%. 
B)  25%. 
C)  15%. 
D)  45%. 
A)  35%. 
B)  25%. 
C)  15%. 
D)  45%.

Question 16

Discuss the flow rate of groundwater in terms of groundwater potential and Darcy's findings.

Accepted Answer

Like surface water, groundwater flows in

Question 17

Caves found in New England and parts of eastern Canada tend to be relatively small and less extensive primarily because:

Accepted Answer

A)  the type of limestone found there is unusually resistant to dissolution. 
B)  the bedrock is crystalline and contains little limestone. 
C)  the groundwater is less acidic. 
D)  the major source of precipitation is snow. 
A)  the type of limestone found there is unusually resistant to dissolution. 
B)  the bedrock is crystalline and contains little limestone. 
C)  the groundwater is less acidic. 
D)  the major source of precipitation is snow.

Question 18

Explain why groundwater is an important resource.

Accepted Answer

Like many organisms, the human body is c

Question 19

Which of the following statements about water that contains dissolved calcium bicarbonate is NOT true?

Accepted Answer

A)  It is considered hard water and may leave calcium carbonate deposits in plumbing pipes. 
B)  It is responsible for the dissolution of limestone. 
C)  It can be carried to the sea where marine organisms use it for building shells. 
D)  It may infiltrate through unconsolidated sediments and deposit calcite as a cementing agent. 
A)  It is considered hard water and may leave calcium carbonate deposits in plumbing pipes. 
B)  It is responsible for the dissolution of limestone. 
C)  It can be carried to the sea where marine organisms use it for building shells. 
D)  It may infiltrate through unconsolidated sediments and deposit calcite as a cementing agent.

Question 20

Explain how geologists trace water from disappearing streams to specific springs.

Accepted Answer

A stream that disappears into the cave s

Primary porosity would probably be the greatest in which of the following?

Withdrawal of groundwater has produced the most severe subsidence in:

How do collapse sinkholes form?

Cross sections of speleothems reveal an ancient ice age because:

The desalinization of seawater is an uncommon way to relieve water shortages even in areas near the ocean because:

Which of the following statements concerning collapse sinkholes is NOT true?

Cave pearls have a round shape because:

What is the relationship between local topography and bodies of surface water and the level of the water table?

All of the following statements about disappearing streams are true EXCEPT:

The instrument water witches use to locate underground water is called a:

Describe the methods that are used to find groundwater sources.

Which of the following methods of enhanced recharge is used by Denver and New York City?

Groundwater sometimes flows upward against gravity because:

Grading steep slopes can enhance groundwater recharge because such a measure:

Approximately what percentage of the United States is karst land?

Discuss the flow rate of groundwater in terms of groundwater potential and Darcy's findings.

Caves found in New England and parts of eastern Canada tend to be relatively small and less extensive primarily because:

Explain why groundwater is an important resource.

Which of the following statements about water that contains dissolved calcium bicarbonate is NOT true?

Explain how geologists trace water from disappearing streams to specific springs.

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Sedimentary Processes, Environments, and Rocks

Metamorphism and Metamorphic Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

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Exam 16: Groundwater

Primary porosity would probably be the greatest in which of the following?

Withdrawal of groundwater has produced the most severe subsidence in:

How do collapse sinkholes form?

Cross sections of speleothems reveal an ancient ice age because:

The desalinization of seawater is an uncommon way to relieve water shortages even in areas near the ocean because:

Which of the following statements concerning collapse sinkholes is NOT true?

Cave pearls have a round shape because:

What is the relationship between local topography and bodies of surface water and the level of the water table?

All of the following statements about disappearing streams are true EXCEPT:

The instrument water witches use to locate underground water is called a:

Describe the methods that are used to find groundwater sources.

Which of the following methods of enhanced recharge is used by Denver and New York City?

Groundwater sometimes flows upward against gravity because:

Grading steep slopes can enhance groundwater recharge because such a measure:

Approximately what percentage of the United States is karst land?

Discuss the flow rate of groundwater in terms of groundwater potential and Darcy's findings.

Caves found in New England and parts of eastern Canada tend to be relatively small and less extensive primarily because:

Explain why groundwater is an important resource.

Which of the following statements about water that contains dissolved calcium bicarbonate is NOT true?

Explain how geologists trace water from disappearing streams to specific springs.

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Sedimentary Processes, Environments, and Rocks

Metamorphism and Metamorphic Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

Filters