AnswersWhites Environmental Science March 2 - 20_Section2Unit Test

Unit Test — Cumulative exam Answers

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1
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Which of the following is true concerning sources of water pollution?

A
Mine wastes and heavy metals become water pollution through storm water runoff.
B
Biodegradable materials like food, wood, and leaves are not considered pollution.
C
Petroleum byproducts and fuels end up as pollution principally from oil spills.
D
Pesticides and herbicides do not commonly become water pollutants.
2
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When is the carbon stored in plants released?

A
during cellular respiration
B
during photosynthesis
C
when they die
D
none of the above
3

The trend of declining ecosystem resource availability and increasing demand for these resources can best be countered by _______.

A
increasing the supply of ecosystem resources
B
decreasing the demand for ecosystem resources
C
applying sustainable development practices
D
developing new technologies for resource collection
4

Human use of groundwater has _______ over time.

A
increased
B
decreased
C
decreased and then increased
D
remained the same
5

Groundwater is an underutilized source of freshwater.

A
T
B
F
6

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.
7

Sustainability can be achieved through careful resource management.

A
T
B
F
8

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
9

Land clearing and irrigation in Australia have only resulted in an increase in the amount of land available for use as farmland.

A
T
B
F
10

Governments and businesses have little impact on the environment.

A
T
B
F
11

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

A
T
B
F
12

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
13

Which of the following is not a way that oil production could potentially affect aquatic viability?

A
marine oil spills during transportation
B
offshore oil drilling
C
interruption of water flow
D
contamination from waste products
14

National parks reduce the human impact on land by _______.

A
permitting limited human development.
B
cleaning up litter
C
preventing human development
D
preventing companies from polluting on public lands
15

Changes to waterways will discontinue if human impacts on waterways cease.

A
T
B
F
16

Buffer zones _______.

A
can help regulate the acidity of aquatic ecosystems
B
help increase erosion rates
C
are set up around natural resource areas
D
all of the above
17

Under maritime law, cruise ships are not allowed to discharge their garbage at sea.

A
T
B
F
18

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
19

Forests are the largest terrestrial carbon sink.

A
T
B
F
20

Which of the following is not true concerning the usage of public land?

A
Public land is managed by federal and state agencies.
B
Unprotected lands exist inside federal parks.
C
Public land can be protected or unprotected.
D
Wilderness areas and state parks are protected.

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