AnswersSC332 Environmental Science BLand Management and Planning

Land Management and Planning — Unit test Answers

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Which of the following is a reason conflicts over zoning decisions can become a divisive issue?

A
Zoning decisions are often wrong and result in significant financial hardship for a city.
B
Zoning decisions do not always change over time and can become antiquated.
C
Establishing zoning types is an expensive process.
D
Zoning regulations prevent new businesses from competing with established businesses.
2
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How is over-irrigation damaging to soil?

A
It reduces the amount of organic material in soil.
B
It results in the accumulation of salt near the soil surface.
C
It increases the acidity of soil.
D
It removes water from the water table.
3

How might environmental manipulation of a crop have unexpected consequences?

A
The new crop may require more water than the original.
B
The crop may harm the environment.
C
The yield may be reduced.
D
All of the above
4

Soil fertility is best described as being dependent upon _______.

A
the balance between organic matter and mineral nutrients
B
soil color and the local climate
C
topography and the local climate
D
soil texture
5

Which of the following best describes what led to London’s “killer fog” in 1952?

A
Pollution from the air contaminated the water supply which is what killed people.
B
Millions of coal fires and stagnant air caused toxic fumes to build up in the air.
C
Poor city design led to faulty ventilation in houses.
D
Soot from forest and wildfires in the surrounding areas blew over the city.
6

Pesticides are best described as _______.

A
polluting chemicals toxic to all living things
B
chemicals that destroy 33% of the world’s potential food supply
C
toxic chemicals used to control weed populations
D
toxic chemicals used to control pest populations
7

Where is the carbon taken in by plants during photosynthesis stored?

A
the ground
B
plant structures
C
the air
D
all of the above
8

Which of the following forest management practices keeps the forest in a state of mid to late succession?

A
clearcutting
B
uneven-aged
C
even-aged
D
seed-tree cutting
9

The principal characteristic that differentiates temperate and tropical rainforests is __________.

A
latitude
B
oxygen turn over
C
the continent they are on
D
longitude
10

Which of the following methods of agriculture is the most reliant upon technology and automation?

A
rangeland grazing
B
American agriculture
C
traditional rice cultivation
D
Dutch agriculture
11

Which of the following is not true concerning cover crops?

A
they prevent soil erosion
B
they can fix nitrogen in soil
C
they are sold as cash crops
D
they add organic matter to soil
12

Rainforest deforestation is contributing to _______.

A
a decline in global biodiversity
B
the reduction of greenhouse gases
C
increased soil moisture
D
increased drug discoveries
13

The urban migration trend has stopped worldwide.

A
T
B
F
14

Cities that have available space in surrounding areas, such as Los Angeles, are likely to experience upward growth rather than urban sprawl.

A
T
B
F
15

Surface mining is more ecologically damaging than subsurface mining.

A
T
B
F
16

Which of the following is a long-term consequence of mining on the Earth?

A
erosion
B
an open pit
C
sedimentation
D
all of the above
17

Which of the following could be found on either public or private land?

A
state park
B
single-family residence
C
mine
D
factory
18

Permafrost (gelisol) is considered a hearty, robust soil type.

A
T
B
F
19

Which of the following is not a possible environmental consequence of urban sprawl?

A
deforestation
B
pollution
C
loss of natural resources
D
none of the above
20

Which of the following is the most direct method for combating rainforest deforestation?

A
ecotourism
B
carbon credits
C
rehabilitation
D
education

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