Question 1

____ water is water that contains relatively large amounts of dissolved calcium and magnesium.

Accepted Answer

A) Hard 
B) Branch 
C) Mineral 
D) Soda 
E) Soft 
A) Hard 
B) Branch 
C) Mineral 
D) Soda 
E) Soft A

Question 2

The capillary fringe is thicker in fine-grained sediments and thinner in coarse-grained sediments.

Accepted Answer

A) True 
 B)False  True

Question 3

How fast groundwater flows depends,in part,on the permeability of the sediment through which it passes.

Accepted Answer

A) True 
 B)False  True

Question 4

Most ________ and _________ are both porous and permeable.

Accepted Answer

A) mudstone; shale 
B) siltstone; claystone 
C) schist; quartzite 
D) granite; gabbro 
E) sandstone; conglomerate 
A) mudstone; shale 
B) siltstone; claystone 
C) schist; quartzite 
D) granite; gabbro 
E) sandstone; conglomerate

Question 5

________ refers to the ability of a rock to transmit fluids.

Accepted Answer

A) Porosity 
B) Hydraulic head 
C) Viscosity 
D) Permeability 
E) Void 
A) Porosity 
B) Hydraulic head 
C) Viscosity 
D) Permeability 
E) Void

Question 6

The upper surface of the saturated zone is called the __.

Accepted Answer

A) water table 
B) hard pan 
C) saturated lid 
D) recharge zone 
E) head level 
A) water table 
B) hard pan 
C) saturated lid 
D) recharge zone 
E) head level

Question 7

In unconfined aquifers water in shallow wells __.

Accepted Answer

A) will rise to the ground surface and flow freely at the surface 
B) will rise just to the ground surface,but will not flow 
C) will rise to the level of the water table 
D) will not rise beyond the base of the well 
E) There is not enough information to answer this question. 
A) will rise to the ground surface and flow freely at the surface 
B) will rise just to the ground surface,but will not flow 
C) will rise to the level of the water table 
D) will not rise beyond the base of the well 
E) There is not enough information to answer this question.

Question 8

In very dry climates such as deserts,rivers tend to be __.

Accepted Answer

A) gaining streams 
B) subsequent streams 
C) meandering streams 
D) losing streams 
E) consequent streams 
A) gaining streams 
B) subsequent streams 
C) meandering streams 
D) losing streams 
E) consequent streams

Question 9

The rate of ground water flow tends to decrease with depth because sedimentary rock pores tend to be closed by increasing amounts of cement and the weight of the overlying rock.

Accepted Answer

A) True 
 B)False

Question 10

Water in the upper part of the saturated zone tends to move downward following the slope of the water table.

Accepted Answer

A) True 
 B)False

Question 11

The amount of ground water is ____ that of all rivers and lakes combined.

Accepted Answer

A) equal to 
B) very minor when compared to 
C) a little less than 
D) many times 
E) of uncertain amount compared to 
A) equal to 
B) very minor when compared to 
C) a little less than 
D) many times 
E) of uncertain amount compared to

Question 12

A _______ is a type of hot spring that erupts hot water and steam.

Accepted Answer

A) geyser 
B) mud volcano 
C) travertine 
D) magma 
E) lahar 
A) geyser 
B) mud volcano 
C) travertine 
D) magma 
E) lahar

Question 13

When water is pumped from a well the water table is typically drawn down into a zone of depression.

Accepted Answer

A) True 
 B)False

Question 14

______ streams receive water from the saturated zone.

Accepted Answer

A) Spring loaded 
B) Losing or influent 
C) Gaining or effluent 
D) Ephemeral 
E) Persistent 
A) Spring loaded 
B) Losing or influent 
C) Gaining or effluent 
D) Ephemeral 
E) Persistent

Question 15

Local lowering of the water table,called ____,tends to change the direction of groundwater flow by changing the slope of the water table.

Accepted Answer

A) drawdown 
B) depressing 
C) porosity 
D) artesian 
E) invasion 
A) drawdown 
B) depressing 
C) porosity 
D) artesian 
E) invasion

Question 16

_____ form when slightly acidic ground water dissolves limestone along joints and bedding planes.

Accepted Answer

A) Pores 
B) Caves 
C) Flowstones 
D) Concretions 
E) Stalagmites 
A) Pores 
B) Caves 
C) Flowstones 
D) Concretions 
E) Stalagmites

Question 17

The water table ______ in humid regions.

Accepted Answer

A) is kilometers deep 
B) roughly parallels the land surface 
C) reaches the ground surface at the top of hills 
D) is at a fixed depth regardless of topography 
A) is kilometers deep 
B) roughly parallels the land surface 
C) reaches the ground surface at the top of hills 
D) is at a fixed depth regardless of topography

Question 18

Gravel has both high porosity and excellent permeability.

Accepted Answer

A) True 
 B)False

Question 19

The unsaturated zone is __.

Accepted Answer

A) a zone of high biological activity located along the water table 
B) the zone of capillary action adjacent to the water table 
C) the zone of mixing at the water table 
D) the zone above the water table 
E) the zone at the ground surface that includes the soil profile 
A) a zone of high biological activity located along the water table 
B) the zone of capillary action adjacent to the water table 
C) the zone of mixing at the water table 
D) the zone above the water table 
E) the zone at the ground surface that includes the soil profile

Question 20

An _____ rock is one that does not allow water to flow through it easily.

Accepted Answer

A) atmospheric 
B) indestructible 
C) unfractured 
D) unstable 
E) impermeable 
A) atmospheric 
B) indestructible 
C) unfractured 
D) unstable 
E) impermeable

Exam 17: Ground Water

____ water is water that contains relatively large amounts of dissolved calcium and magnesium.

The capillary fringe is thicker in fine-grained sediments and thinner in coarse-grained sediments.

How fast groundwater flows depends,in part,on the permeability of the sediment through which it passes.

Most ________ and _________ are both porous and permeable.

________ refers to the ability of a rock to transmit fluids.

The upper surface of the saturated zone is called the __.

In unconfined aquifers water in shallow wells __.

In very dry climates such as deserts,rivers tend to be __.

The rate of ground water flow tends to decrease with depth because sedimentary rock pores tend to be closed by increasing amounts of cement and the weight of the overlying rock.

Water in the upper part of the saturated zone tends to move downward following the slope of the water table.

The amount of ground water is ____ that of all rivers and lakes combined.

A _______ is a type of hot spring that erupts hot water and steam.

When water is pumped from a well the water table is typically drawn down into a zone of depression.

______ streams receive water from the saturated zone.

Local lowering of the water table,called ____,tends to change the direction of groundwater flow by changing the slope of the water table.

_____ form when slightly acidic ground water dissolves limestone along joints and bedding planes.

The water table ______ in humid regions.

Gravel has both high porosity and excellent permeability.

The unsaturated zone is __.

An _____ rock is one that does not allow water to flow through it easily.

Introducing Geology,the Essentials of Plate Tectonics,and Other Important Concepts

Earths Interior and Geophysical Properties

The Sea Floor

Plate Tectonics

Mountain Belts and the Continental Crust

Geologic Structures

Earthquakes

Time and Geology

Atoms,Elements and Minerals

Volcanism and Extrusive Rocks

Igneous Rocks, Intrusive Activity, and the Origin of Igneous Rocks

Weathering and Soil

Mass Wasting

Sediment and Sedimentary Rocks

Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks

Streams and Floods

Deserts and Wind Action

Glaciers and Glaciation

Waves,Beaches and Coasts

Geologic Resources

The Earths Companions

Filters

Most and _ are both porous and permeable.