AnswersFL-2001340-Environmental Science Sem 2Sustainability

Sustainability — Cumulative exam Answers

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Which of the following explains why energy use impacts quality of life?

A
Increased energy use leads to increased economic activity.
B
Decreased energy use leads to increased quality of life.
C
All facets of a quality life are energy dependent.
D
Energy use is unrelated to quality of life.
62
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Moving up trophic levels there is an increase in energy, entropy, and biomass.

A
T
B
F
63

Which of the following statements about soil is not correct?

A
Soil health depends upon the interaction of living and nonliving components.
B
The properties of soil are dependent only on nonliving components.
C
The properties of soil can influence the productivity of plant life.
D
Organic material is an important element of soil.
64

What is an advantage of using nuclear power?

A
Nuclear power is generated at a lower cost than traditional methods.
B
Nuclear power produces less pollution than traditional methods.
C
Nuclear power is more efficient than traditional methods.
D
All of the above
65

Why are cane toads in Australia considered an invasive species rather than simply nonnative?

A
They are destructive to native species and have no natural predators.
B
They reproduce more quickly than native species.
C
They have venom glands.
D
Large adult specimens are able to hunt snakes.
66

Why is preventing pollution at its source the first strategy in minimizing environmental risk?

A
It is easier and more effective to prevent pollution than to clean up and dispose of waste.
B
Remediation of contamination is easier than pollution prevention.
C
Habitat restoration cannot be undertaken with modern technologies.
D
Safe waste disposal is the easiest was to minimize environmental risk.
67

Which of the following practices that are needed to run a nuclear power plant has a negative impact on both air and water?

A
cooling of the power plant
B
mining of uranium
C
storage of radioactive waste
D
monitoring the reactor
68

Which of the following best explains why autonomous underwater explorers (AUEs) will provide revolutionary new information on ocean processes?

A
Previously there has not been a method to study small-scale ocean processes.
B
Previously there has been too much study of small-scale ocean processes.
C
Previously there has not been a method to study large-scale ocean processes.
D
Previously there has been too much study of large-scale ocean processes.
69

Which of the following best explains why autonomous underwater explorers (AUEs) will provide revolutionary new information on ocean processes?

A
Previously there has not been a method to study small-scale ocean processes.
B
Previously there has been too much study of small-scale ocean processes.
C
Previously there has not been a method to study large-scale ocean processes.
D
Previously there has been too much study of large-scale ocean processes.
70

The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of _______.

A
hull fouling
B
the aquarium trade in exotic, nonnative aquatic species
C
intentional release
D
an algae farming company
71

Which of the following is not a way in which wetlands filter water?

A
nutrient absorption
B
oil absorption
C
sediment trapping
D
bacterial absorption
72

What important function do stream pools serve?

A
Stream pools serve as a habitat for juvenile fish.
B
Stream pools serve as a habitat for organisms that have difficulty in feeding or navigating swifter areas of the stream.
C
They have greater depth and lower velocity than other parts of the stream, thus allowing a habitat for organisms during dryer seasons.
D
All of the above
73

Which of the following is not a trait of mangrove trees?

A
They excrete salt through their leaves.
B
They do not tolerate highly saline environments.
C
They have two types of specialized roots.
D
They absorb oxygen through their roots.
74

Which of the following types of carbon fixation is associated with plant stomata being open during the night?

A
C3
B
C4
C
CAM
D
all of the above
75

Which of the following is a benefit associated with the use of energy producing technologies excluding the burning of fossil fuels?

A
reduced water use
B
reduced air pollution
C
reduced habitat loss
D
all of the above
76

The traditional view of mangrove forests as wastelands and unhealthy environments helped promote their degradation because _______.

A
mangrove forests are unproductive, unhealthy habitats
B
people did not feel it was necessary to preserve them
C
mangrove forests do not need to be preserved
D
all of the above
77

Which of the following statements about water policy is true?

A
The United States does not regulate water quality.
B
Policies regulating water pollution and water quality have eliminated environmentalists concern about water.
C
Current laws in place about water policy would eliminate water quality problems if they were enforced.
D
The Clean Water Act has helped reduce water contamination, but further efforts are needed to maintain water quality.
78

Nuclear fusion occurs in stars.

A
T
B
F
79

Which is true of solar, wind, and geothermal energy?

A
They contribute to atmospheric pollution.
B
They are dependent on location to be effective.
C
They contribute to global warming.
D
They contribute to negative health consequences.
80

Which of the following is not a way that humus affects the properties of soil?

A
Humus expands with increased moisture levels.
B
Humus increases the movement of water and air in soil.
C
Humus decreases the porosity of soil.
D
Humus acts as the basis for soil life.

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