AnswersWhites Environmental Science March 2 - 20_Section2Unit Test

Unit Test — Unit test Answers

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21
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What is a drought?

A
a warm season brought on by Earth tilting toward the Sun
B
an extended period of time with little to no snow or rainfall
C
a large wave usually caused by an undersea earthquake
D
a cool season brought on by Earth tilting away from the Sun
22
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What is speciation?

A
the complete loss of a species that has died out
B
the evolutionary process through which new species emerge
C
a short-term environmental change
D
a long-term environmental change
23

Environmental risks arise from all of the following except _______.

A
pesticides
B
pollution
C
industrial chemicals
D
groundwater
24

An environmental change is occurring due to continents shifting and moving to different parts of Earth’s surface. What kind of change is this?

A
a short-term change due to global warming
B
a long-term change due to tectonic plate movement
C
a short-term change due to increasing levels of solar energy
D
a long-term change due to forest fires
25

What is a tsunami?

A
a warm season brought on by Earth tilting toward the Sun
B
an extended period of time with little to no snow or rainfall
C
a large wave usually caused by an undersea earthquake
D
a cool season brought on by Earth tilting away from the Sun
26

Which sustainable practice is paired correctly with its impact on the environment?

A
Using bamboo results in an increased use of forest trees.
B
Practicing contour plowing results in a need for more land.
C
Setting irrigation systems to run longer results in a reduction of water use.
D
Building more wind farms results in a reduction of fossil fuel use.
27

Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture. How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

A
by increasing carbon dioxide and decreasing oxygen
B
by increasing carbon dioxide and increasing oxygen
C
by decreasing carbon dioxide and increasing oxygen
D
by decreasing carbon dioxideand decreasing oxygen
28

The U.S.-Mexico border 2012 program’s goal is to _______.

A
prevent illegal immigration
B
improve transboundary ecosystem health
C
promote joint economic development
D
reintroduce endangered species
29

The U.S.-Mexico border 2012 program’s goal is to _______.

A
prevent illegal immigration
B
improve transboundary ecosystem health
C
promote joint economic development
D
reintroduce endangered species
30

How is an ecological footprint determined?

A
An ecological footprint is determined by measuring the average amount of land and water that a person in a region uses.
B
An ecological footprint is determined by measuring carbon dioxide emissions for a given region.
C
An ecological footprint is determined by measuring the rate of water use.
D
An ecological footprint is determined by measuring the amount of waste generated in a given region.
31

Which of the following statements about energy producing technologies is true?

A
Some currently used energy producing technologies have no disadvantages.
B
Alternatives to nonrenewable energy sources can be as effective.
C
Air pollution is common to all energy producing technologies.
D
Alternatives to nonrenewable energy sources are typically more damaging to the environment.
32

Which human activity is correctly paired with the greenhouse gas that it increases?

A
rice cultivation and water vapor
B
landfilling and carbon dioxide
C
deforestation and methane
D
sewage treatment and nitrous oxide
33

Which of the following statements about the effects of agricultural techniques on the environment is true?

A
Fertilizer used for agriculture can enter bodies of water, causing eventual oxygen depletion.
B
Pesticides and herbicides are potentially harmful to bodies of water only before they degrade.
C
Agricultural practices have limited impact on the surrounding environment.
D
Tillage is an important agricultural practice that has no known environmental impact.
34

Energy producing technologies can positively impact soil fertility.

A
T
B
F
35

Renewable resources can be used without worry about consequences to the environment.

A
T
B
F
36

Collaborations between environmental groups and business interests on environmental issues have resulted in successful partnerships.

A
T
B
F
37

Brownfields are best described as _______.

A
parcels of polluted land that cannot be redeveloped safely
B
polluted land that must be remediated before being redeveloped
C
land where pollution has killed all vegetation, turning it “brown”
D
fields with excess organic waste and animal feces
38

Which sustainable practice is paired correctly with its impact on the environment?

A
Using bamboo results in an increased use of forest trees.
B
Practicing contour plowing results in a need for more land.
C
Setting irrigation systems to run longer results in a reduction of water use.
D
Building more wind farms results in a reduction of fossil fuel use.
39

Which is a renewable resource?

A
petroleum
B
wood
C
iron
D
coal
40

Federal law requires that commercial chemicals do not pose health risks to the people that work with these chemicals.

A
T
B
F

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