Unit Test — Cumulative exam Answers

25 verified answers3 views
23

The ozone layer is located in the _______.

A
troposphere
B
stratosphere
C
mesosphere
D
thermosphere
24

Which of the following best explains why humans need constant supplies of fresh water?

A
Humans need a constant supply of water to provide them with essential vitamins.
B
Humans need a constant supply of water to maintain proper hygiene.
C
Constant supplies of freshwater are needed because body water is continually being lost.
D
Constant supplies of freshwater are not actually necessary for survival.
25

How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?

A
It is used directly to heat homes and offices.
B
It generates steam, which turns a turbine, powering a generator.
C
It generates steam, which is then condensed back to water. This process produces energy.
D
All of the above
27

An understanding of how human activity affects the environment is important for environmental policy makers.

A
T
B
F
28

Energy efficiency strategies are based on the assumption that consumers will be willing to pay more in exchange for reduced energy use.

A
T
B
F
29

How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?

A
It is used directly to heat homes and offices.
B
It generates steam, which turns a turbine, powering a generator.
C
It generates steam, which is then condensed back to water. This process produces energy.
D
All of the above
30

Which of the following statements about large scale mineral extraction is true?

A
The economic benefits of large scale mineral extraction outweigh the environmental costs.
B
Large scale mineral extraction is more destructive than in the past.
C
Large scale extraction is vital to the economy of mining towns.
D
Mineral extraction cannot be done in ways that do not completely destroy the environment.
31

When is the carbon stored in plants released?

A
during cellular respiration
B
during photosynthesis
C
when they die
D
none of the above
32

Which of the following stages of urban development contributed to an increase in suburban living?

A
preindustrial
B
industrial
C
pedestrian
D
automobiles
33

Human use of groundwater has _______ over time.

A
increased
B
decreased
C
decreased and then increased
D
remained the same
34

Which of the following best explains why humans need constant supplies of fresh water?

A
Humans need a constant supply of water to provide them with essential vitamins.
B
Humans need a constant supply of water to maintain proper hygiene.
C
Constant supplies of freshwater are needed because body water is continually being lost.
D
Constant supplies of freshwater are not actually necessary for survival.
35

Which of the following best explains how human activities can directly contribute to landslides?

A
Removing plants from hillsides eliminates the root structures that anchor soil.
B
Clearing trees from hills increases the frequency of rainstorms.
C
Human activities tend to reduce the risk of fires.
D
Landslides are not impacted by human activities.
36

Which of the following is not a strategy for reducing environmental risk?

A
safely disposing of waste
B
setting fines for pollution
C
remediating waste generation
D
remediating contamination
37

Which of the following statements about urban growth is true?

A
The rate of urban growth in the world is decreasing.
B
Urban sprawl is less environmentally damaging than upward growth.
C
Upward growth is less environmentally damaging than urban sprawl.
D
More people are moving away from cities than in previous years.
38

Water conservation efforts have been wholly ineffective.

A
T
B
F
39

It is unlikely that the United States will have further turning points in environmental policy, as most important issues have already been addressed.

A
T
B
F
40

Which of the following is(are) true concerning the 2004 tsunami in Indonesia?

A
It had minimal human casualties.
B
The tsunami waves were as high as 500 feet.
C
It was triggered by magnitude 9.1 earthquake.
D
All of the above

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