Sustainability — Unit test Answers

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21
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Which of the following practices will lead to sustainability?

A
increased groundwater pumping
B
fossil fuel use
C
conservation tillage
D
increased pesticide use
22
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Greenhouse gases are best described as _______.

A
the result of fossil fuel use
B
gases that cause the greenhouse effect
C
carbon dioxide and methane
D
gases that trap energy from the sun in Earth’s atmosphere
23

How is renewable fuel use expected to change in the next decade?

A
It is expected to decrease.
B
It is expected to increase.
C
It is expected to fluctuate.
D
It is expected to remain the same.
24

Global warming is a theory accepted by a majority of scientists.

A
T
B
F
25

The goal of the world resource simulation center is best described as _______.

A
solving current problems regarding world resource use
B
predicting the future impacts of resource use in the U.S.
C
determining how to manage global resources for all humanity
D
providing education tools for describing global resource use
26

How is renewable fuel use expected to change in the next decade?

A
It is expected to decrease.
B
It is expected to increase.
C
It is expected to fluctuate.
D
It is expected to remain the same.
27

Which of the following is a way that human modification of limiting factors causes unbalance in ecosystems?

A
habitat loss
B
pollution
C
climate changes
D
all of the above
28

In a food chain, consumers gather energy by _______.

A
consuming organisms at a lower trophic level
B
consuming organisms at a higher trophic level
C
decomposing dead organic matter
D
absorbing sunlight directly
29

Which of the following is an environmental consequence of importing resources into the United States?

A
air pollution
B
habitat loss
C
oil spills
D
all of the above
30

How are the carbon, nitrogen, and oxygen cycles similar?

A
They are all biogeochemical cycles.
B
They all involve an interaction between living and nonliving elements.
C
They are all part of the Earth system.
D
All of the above.
31

Which of the following represents a way that animals in a zoo are influenced by their environment?

A
increased natural instincts
B
decreased aggression
C
unnatural behavior
D
increased appetite

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