AnswersFL-2001340-Environmental Science Sem 2Unit Test

Unit Test — Cumulative exam Answers

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1
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Which of the following is not a source of air pollution related to human activities?

A
gasoline
B
garbage
C
forest fires
D
radon
2
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Which of the following organisms feed on the detritus found in wetlands?

A
aquatic insects
B
birds
C
reptiles
D
predatory fish
3

Permits in the cap and dividend policy are issued for _______ production.

A
carbon dioxide
B
timber
C
water pollution
D
plastic
4

Which of the following best explains the importance of studying the ocean carbon cycle?

A
The oceans have a significant impact on the levels of atmospheric gases.
B
It is a new field of ocean science.
C
The ocean releases one quarter of the carbon dioxide in the atmosphere.
D
All of the above
5

Which of the following statements about environmental risks to human health is true?

A
Environmental health risks are associated only with synthetic compounds.
B
Environmental health risks come from natural sources only.
C
Environmental health risks are associated solely with human activity.
D
None of the above
6

The use of biotechnology in agriculture is generally more harmful than beneficial.

A
T
B
F
7

Which of the following is a way that scientific advancements have benefited society?

A
increased energy efficiency
B
increased resource use
C
increased urbanization
D
changes in the global climate
8

Forests are the largest terrestrial carbon sink.

A
T
B
F
9

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
10

Which of the following best explains why the Inuit principally relied on hunting for survival?

A
Tundra never thaws sufficiently for crops to grow.
B
Prey animals are more scarce in tundra regions.
C
The Inuit traditionally live near the coast.
D
None of the above
11

The high productivity of American agriculture is exemplified by _______.

A
low crop yields per farm worker
B
high crop yields per farm worker
C
the small cultivated area per inhabitant
D
the small cultivated area per farmer
12

Human use of groundwater has _______ over time.

A
increased
B
decreased
C
decreased and then increased
D
remained the same
13

Which of the following energy sources is expected to have the highest rate of consumption in 2030?

A
coal
B
natural gas
C
nuclear
D
renewable energy
14

Which of the following is true about glass recycling?

A
Recycling glass reduces the rate of deforestation.
B
Recycling glass eliminates greenhouse gas emissions.
C
Recycling glass is an energy-saving practice.
D
Recycling glass has an incredibly short turn around time.
15

Bottom trawling is considered destructive because _______.

A
it destroys sea floor habitats
B
it depletes fish populations
C
it shatters deep-sea coral
D
all of the above
16

Which of the following is an example of a long-term change to ecosystems?

A
seasons
B
tide cycle
C
evolution
D
population growth
17

Which of the following best explains the environmental problems associated with trawling?

A
Trawling always destroys sea floor ecologies.
B
Trawling gathers fish indiscriminately.
C
Trawling is too selective at gathering fish.
D
All of the above
18

Which of the following species is an R-selected species?

A
Giant tortoises
B
Mosquitoes
C
Elephants
D
Redwoods
19

Which of the following is not a zoning type?

A
commercial
B
residential
C
agricultural
D
slum
20

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

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