Question 1

Ninety percent of the water used by Las Vegas, Nevada, comes from the Colorado River.

Accepted Answer

A) True 
 B)False  True

Question 2

The main goals of a dam and reservoir include all of the following, except

Accepted Answer

A) produce electricity 
B) clean the water 
C) supply water for irrigation 
D) provide recreational activities 
E) reduce downstream flooding 
A) produce electricity 
B) clean the water 
C) supply water for irrigation 
D) provide recreational activities 
E) reduce downstream flooding B

Question 3

What percentage of the world's water supply is liquid freshwater that is available to living organisms?

Accepted Answer

A) 24% 
B) 20% 
C) 10% 
D) 0.024% 
E) 0.000024% 
A) 24% 
B) 20% 
C) 10% 
D) 0.024% 
E) 0.000024% D

Question 4

The above diagram points to the advantages (A─E) and the disadvantages (F─J) of large dams and reservoirs.Correctly identify and each of the five advantages (A─E) and disadvantages (F─J) of such large dams and reservoirs as indicated on the diagram.
-Downstream cropland and estuaries are deprived of nutrient-rich silt.

Accepted Answer

The answer of   
The above diagram points to...

Question 5

Since 1999, much of the United States, especially the arid southwest, has experienced severe drought.

Accepted Answer

A) True 
 B)False

Question 6

By 2013 at least 36 U.S.states are likely to face water shortages for all of the following reasons, except

Accepted Answer

A) drought 
B) cooling temperatures 
C) population growth 
D) urban sprawl 
E) waste of water 
A) drought 
B) cooling temperatures 
C) population growth 
D) urban sprawl 
E) waste of water

Question 7

The above diagram points to the advantages (A─E) and the disadvantages (F─J) of large dams and reservoirs.Correctly identify and each of the five advantages (A─E) and disadvantages (F─J) of such large dams and reservoirs as indicated on the diagram.
-Provides water for irrigation of cropland.

Accepted Answer

The answer of   
The above diagram points to...

Question 8

Most of the water in the Colorado River comes from snowmelt in the ____________________.

Accepted Answer

The answer of Most of the water in the Colorado...

Question 9

Groundwater does not move at all.

Accepted Answer

A) True 
 B)False

Question 10

By 2050, some 60 countries, many of them in Asia, with ____________________ of the world's population, are likely to be suffering from water stress..

Accepted Answer

The answer of By 2050, some 60 countries, many of...

Question 11

Four of the following are disadvantages of dam and reservoir systems; one is not.Choose the one that is not.

Accepted Answer

A) disrupts migration of some fish 
B) displaces people behind the dam 
C) leads to devastating flooding if there is a failure 
D) reduces water loss through evaporation 
E) reduces nutrients released downstream 
A) disrupts migration of some fish 
B) displaces people behind the dam 
C) leads to devastating flooding if there is a failure 
D) reduces water loss through evaporation 
E) reduces nutrients released downstream

Question 12

What percentage of groundwater and surface water withdrawn in the U.S.was used to cool electric power plants?

Accepted Answer

A) 41% 
B) 37% 
C) 13% 
D) 9% 
E) 3% 
A) 41% 
B) 37% 
C) 13% 
D) 9% 
E) 3%

Question 13

Based on climate models the southwestern United States and northern Mexico will likely have extended periods of extreme drought throughout the rest of this century.

Accepted Answer

A) True 
 B)False

Question 14

Each day the average American directly uses about 69 gallons of water a day.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not a problem of desalination?

Accepted Answer

A) reduces soil salinization on irrigated lands. 
B) high energy cost 
C) chemicals used to sterilize the water kill marine organisms 
D) resulting salty wastewater must be disposed of 
E) pumping seawater through pipes requires lots of energy 
A) reduces soil salinization on irrigated lands. 
B) high energy cost 
C) chemicals used to sterilize the water kill marine organisms 
D) resulting salty wastewater must be disposed of 
E) pumping seawater through pipes requires lots of energy

Question 16

Which of the following is not a way to reduce water waste in industry and homes?

Accepted Answer

A) use water-thrifty native plants in lawns 
B) using gray water to irrigate lawns and nonedible plants 
C) raising the cost of water in water-short areas 
D) condensing water vapor from indoor air 
E) recycling water for use in industry 
A) use water-thrifty native plants in lawns 
B) using gray water to irrigate lawns and nonedible plants 
C) raising the cost of water in water-short areas 
D) condensing water vapor from indoor air 
E) recycling water for use in industry

Question 17

Indirectly used water, that is, water consumed to produce food and other products, is called

Accepted Answer

A) surface runoff 
B) virtual water 
C) non-renewal aquifers 
D) water table 
E) groundwater 
A) surface runoff 
B) virtual water 
C) non-renewal aquifers 
D) water table 
E) groundwater

Question 18

By the year 2025 how many of the world's people are likely to lack access to clean water?

Accepted Answer

A) 1 billion 
B) 2 billion 
C) 3 billion 
D) 4 billion 
E) 7.9 billion 
A) 1 billion 
B) 2 billion 
C) 3 billion 
D) 4 billion 
E) 7.9 billion

Question 19

A flood happens when water in a stream overflows its normal channel covers the adjacent area called a(n) ____________________.

Accepted Answer

The answer of A flood happens when water in a...

Question 20

The term subsidence refers to

Accepted Answer

A) failure of the groundwater supply 
B) sinking of ground when water has been withdrawn 
C) living on very little money 
D) intrusion of salt water into a freshwater aquifer 
E) money paid by the government to farmers 
A) failure of the groundwater supply 
B) sinking of ground when water has been withdrawn 
C) living on very little money 
D) intrusion of salt water into a freshwater aquifer 
E) money paid by the government to farmers

Exam 13: Water Resources

Ninety percent of the water used by Las Vegas, Nevada, comes from the Colorado River.

The main goals of a dam and reservoir include all of the following, except

What percentage of the world's water supply is liquid freshwater that is available to living organisms?

Since 1999, much of the United States, especially the arid southwest, has experienced severe drought.

By 2013 at least 36 U.S.states are likely to face water shortages for all of the following reasons, except

Most of the water in the Colorado River comes from snowmelt in the ____________________.

Groundwater does not move at all.

By 2050, some 60 countries, many of them in Asia, with ____________________ of the world's population, are likely to be suffering from water stress..

Four of the following are disadvantages of dam and reservoir systems; one is not.Choose the one that is not.

What percentage of groundwater and surface water withdrawn in the U.S.was used to cool electric power plants?

Based on climate models the southwestern United States and northern Mexico will likely have extended periods of extreme drought throughout the rest of this century.

Each day the average American directly uses about 69 gallons of water a day.

Which of the following is not a problem of desalination?

Which of the following is not a way to reduce water waste in industry and homes?

Indirectly used water, that is, water consumed to produce food and other products, is called

By the year 2025 how many of the world's people are likely to lack access to clean water?

A flood happens when water in a stream overflows its normal channel covers the adjacent area called a(n) ____________________.

The term subsidence refers to

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