Question 1

What causes hot springs?

Accepted Answer

A)  extreme kinetic energy and pressure from emerging water 
B)  deep circulation of water 
C)  proximity to tectonic action 
D)  proximity to magma 
A)  extreme kinetic energy and pressure from emerging water 
B)  deep circulation of water 
C)  proximity to tectonic action 
D)  proximity to magma

Question 2

Which of the following is not a reason that the tracer material was found at varying concentrations?

Accepted Answer

A)  impermeability of materials 
B)  varying pore sizes 
C)  varying circuitous routes of water molecules 
D)  spreading out over a large volume of water 
A)  impermeability of materials 
B)  varying pore sizes 
C)  varying circuitous routes of water molecules 
D)  spreading out over a large volume of water

Question 3

What is MTBE?

Accepted Answer

A)  a pollutant that dissolves in ground water 
B)  a natural component of gasoline 
C)  a pollutant that sinks to the bottom of an aquifer 
D)  a carcinogen that rises to the top of the water table 
A)  a pollutant that dissolves in ground water 
B)  a natural component of gasoline 
C)  a pollutant that sinks to the bottom of an aquifer 
D)  a carcinogen that rises to the top of the water table

Question 4

"The water table always loses water when it is intersected by a stream bed that has eroded to that level." Evaluate this statement.

Accepted Answer

A)  It is true. Water from the water table seeps into the stream and moves downstream. 
B)  It is partially true. When it rains, the water table gains water through the streambed. 
C)  It is false. Stream beds cannot erode enough to reach the water table unless there is an existing spring. 
D)  It is false. Streams receive their water by runoff of precipitation and, in fact, supply water to the water table. 
A)  It is true. Water from the water table seeps into the stream and moves downstream. 
B)  It is partially true. When it rains, the water table gains water through the streambed. 
C)  It is false. Stream beds cannot erode enough to reach the water table unless there is an existing spring. 
D)  It is false. Streams receive their water by runoff of precipitation and, in fact, supply water to the water table.

Question 5

Why do we develop a well?

Accepted Answer

To clean up the wall of the well adjacen

Question 6

What creates perched ground water?

Accepted Answer

A)  tectonic plate movement 
B)  folding action that results in higher pockets 
C)  patches of low-permeability rock 
D)  excessive flooding 
A)  tectonic plate movement 
B)  folding action that results in higher pockets 
C)  patches of low-permeability rock 
D)  excessive flooding

Question 7

Which of the following cause ground water to flow?

Accepted Answer

A)  kinetic energy and pressure 
B)  volume and elevation 
C)  elevation and potential energy 
D)  potential energy and pressure 
A)  kinetic energy and pressure 
B)  volume and elevation 
C)  elevation and potential energy 
D)  potential energy and pressure

Question 8

Which mineral does not dissolve readily in water?

Accepted Answer

A)  halite 
B)  gypsum 
C)  mica 
D)  calcite 
A)  halite 
B)  gypsum 
C)  mica 
D)  calcite

Question 9

Which statement about ground water is false?

Accepted Answer

A)  It is pure H2O. 
B)  It is less quickly affected by pollution sources than surface water. 
C)  It makes up about 98 percent of Earth's unfrozen fresh water. 
D)  It is usually a reliable water source. 
A)  It is pure H2O. 
B)  It is less quickly affected by pollution sources than surface water. 
C)  It makes up about 98 percent of Earth's unfrozen fresh water. 
D)  It is usually a reliable water source.

Question 10

What lies just above the water table?

Accepted Answer

A)  a layer of shale 
B)  an unsaturated zone 
C)  a saturated zone 
D)  empty cavern space 
A)  a layer of shale 
B)  an unsaturated zone 
C)  a saturated zone 
D)  empty cavern space

Question 11

Which is not one the most common ore deposits that form in sedimentary rocks that is associated with hard-water deposits?

Accepted Answer

A)  zinc 
B)  copper 
C)  magnesium 
D)  lead 
A)  zinc 
B)  copper 
C)  magnesium 
D)  lead

Question 12

Describe how coastal wells abruptly become salty and unusable.

Accepted Answer

Ground water beneath the seafloor is typ

Question 13

"Compared to other ground water, the rate of the Cape Cod experiment area, 0.43 meters per day, is probably faster than average." Evaluate this statement.

Accepted Answer

A)  This is true. The Cape Cod aquifer is made of relatively porous unconsolidated gravel and sand. 
B)  This is false. Other aquifers might flow as quickly as 0.5 meters per second. 
C)  Aquifer flow cannot be estimated without repeating a similar experiment in other areas. 
D)  This is true. The Cape Cod aquifer has a much steeper slope than average. 
A)  This is true. The Cape Cod aquifer is made of relatively porous unconsolidated gravel and sand. 
B)  This is false. Other aquifers might flow as quickly as 0.5 meters per second. 
C)  Aquifer flow cannot be estimated without repeating a similar experiment in other areas. 
D)  This is true. The Cape Cod aquifer has a much steeper slope than average.

Question 14

Which of the following features is evidence of ground-water dissolution?

Accepted Answer

A)  sinkholes 
B)  spits 
C)  yardangs 
D)  levees 
A)  sinkholes 
B)  spits 
C)  yardangs 
D)  levees

Question 15

Where is arsenic most likely to be common in drinking water?

Accepted Answer

A)  near industrial plants 
B)  near large batholiths of metamorphic rock 
C)  where water flows through volcanic rocks 
D)  where water flows across the surface for a long distance 
A)  near industrial plants 
B)  near large batholiths of metamorphic rock 
C)  where water flows through volcanic rocks 
D)  where water flows across the surface for a long distance

Question 16

Ground-water motion is due to potential- and pressure-energy effects. Potential energy is ________ at the surface than at lower elevations below ground. Pressure energy ________ with increasing depth.

Accepted Answer

A)  greater, increases 
B)  greater, decreases 
C)  lesser, increases 
D)  lesser, decreases 
A)  greater, increases 
B)  greater, decreases 
C)  lesser, increases 
D)  lesser, decreases

Question 17

All of the following are common sources of ground water pollution except

Accepted Answer

A)  leaky underground storage tanks. 
B)  oil tanker spills. 
C)  leaky septic systems. 
D)  landfill leaching. 
A)  leaky underground storage tanks. 
B)  oil tanker spills. 
C)  leaky septic systems. 
D)  landfill leaching.

Question 18

Name reasons why it is important to study groundwater.

Accepted Answer

This resource provides drinking water to

Question 19

What influences the shape of the cone of depression?

Accepted Answer

A)  the rock type and the depth of permeability 
B)  the elevation of the aquifer compared to the well depth 
C)  balance between pumped water and ground-water flow toward well 
D)  the size of the aquifer 
A)  the rock type and the depth of permeability 
B)  the elevation of the aquifer compared to the well depth 
C)  balance between pumped water and ground-water flow toward well 
D)  the size of the aquifer

Question 20

Judge the following sentence according to the criteria given below. Ground water moves along the top of the water table from high elevation to low elevation because the slope of the water table determines the direction of ground-water flow.

Accepted Answer

A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect. 
A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect.

Exam 17: Water Flowing Underground

What causes hot springs?

Which of the following is not a reason that the tracer material was found at varying concentrations?

What is MTBE?

"The water table always loses water when it is intersected by a stream bed that has eroded to that level." Evaluate this statement.

Why do we develop a well?

What creates perched ground water?

Which of the following cause ground water to flow?

Which mineral does not dissolve readily in water?

Which statement about ground water is false?

What lies just above the water table?

Which is not one the most common ore deposits that form in sedimentary rocks that is associated with hard-water deposits?

Describe how coastal wells abruptly become salty and unusable.

"Compared to other ground water, the rate of the Cape Cod experiment area, 0.43 meters per day, is probably faster than average." Evaluate this statement.

Which of the following features is evidence of ground-water dissolution?

Where is arsenic most likely to be common in drinking water?

Ground-water motion is due to potential- and pressure-energy effects. Potential energy is ________ at the surface than at lower elevations below ground. Pressure energy ________ with increasing depth.

All of the following are common sources of ground water pollution except

Name reasons why it is important to study groundwater.

What influences the shape of the cone of depression?

Judge the following sentence according to the criteria given below. Ground water moves along the top of the water table from high elevation to low elevation because the slope of the water table determines the direction of ground-water flow.

Why Study Earth

Minerals: Building Blocks of the Planet

Rocks and Rock-Forming Processes

Formation of Magma and Igneous Rocks

Formation of Sediment and Sedimentary Rocks

Formation of Metamorphic Rocks

Earth Materials As Time Keepers

Earth Materials As Time Keepers

Making Earth

Motion Inside Earth

Deformation of Rocks

Global Tectonics: Plates and Plumes

Tectonics and Surface Relief

Soil Formation and Landscape Stability

Mass Movements: Landscapes in Motion

Streams: Flowing Water Shapes the Landscape

Glaciers: Cold-Climate Sculptors of Continents

Shorelines: Changing Landscapes Where Land Meets Sea

Wind: a Global Geologic Process

Global Warming: Real Time Change in the Earth System

Filters

Ground-water motion is due to potential- and pressure-energy effects. Potential energy is at the surface than at lower elevations below ground. Pressure energy with increasing depth.