AnswersSC332 Environmental Science BLand Management and Planning

Land Management and Planning — Unit test Answers

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21
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Which of the following is not a possible consequence of surface mining?

A
increased pollution
B
improved ecosystem health
C
destruction of flora and fauna
D
erosion of soil
22
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Which of the following forest management practices is the most harmful to forest ecosystems?

A
clearcutting
B
shelterwood cutting
C
group selection
D
single tree selection
23

Which of the following cities has experienced more upward growth than urban sprawl?

A
Los Angeles, California
B
Bangkok, Thailand
C
Tokyo, Japan
D
Jakarta, Indonesia
24

Dutch agriculture is one of the most labor intensive types of agriculture in the world.

A
T
B
F
25

Dutch agriculture is one of the most labor intensive types of agriculture in the world.

A
T
B
F
26

How can zoning laws be beneficial to a city’s residents?

A
They prevent new business development.
B
They can prevent new development that would harm established residents.
C
They limit the maximum height of buildings.
D
They restrict who can live in a city.
27

Which of the following statements about human impact on trees is true?

A
Human activity always has a negative impact on trees.
B
All human uses of trees require destruction of the trees.
C
Human activity has had both a positive and negative impact on trees.
D
Cutting down trees is the only activity that has a negative impact on trees.
28

Biological pest control involves _______.

A
eliminating pests with pesticides
B
using biological mechanisms to eliminate pests
C
planting a new crop every year
D
burning crops
29

Which layer of soil is least likely to be penetrated by plant roots?

A
O (organic matter)
B
A (topsoil)
C
B (subsoil)
D
C (parent rock)
30

Which of the following is not true concerning rainforests?

A
Twenty-five percent of western pharmaceuticals are derived from rainforest ingredients.
B
Almost 50,000 rainforest species are lost every year due to deforestation.
C
Half of all rainforest plants have been tested for their medicinal properties.
D
Projections say rainforest deforestation could eliminate half of the world’s species.
31

How do trees interact with other organisms?

A
They provide mammals with food.
B
They receive shelter from insects.
C
They obtain food from other plants.
D
All of the above
32

Which of the following best describes the use of rainforest plants as anticancer drugs?

A
Most rainforest plants have been tested for their cancer fighting properties.
B
Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants.
C
The most powerful anticancer drugs are not rainforest plants.
D
All of the above
33

Which of the following is the most damaging method of soil remediation?

A
soil excavation and disposal
B
soil aeration
C
heating and vapor extraction
D
microbial digestion
34

Which of the following is not a component of soil?

A
organic material
B
minerals
C
gases
D
none of the above
35

Which of the following cities has experienced more upward growth than urban sprawl?

A
Los Angeles, California
B
Bangkok, Thailand
C
Tokyo, Japan
D
Jakarta, Indonesia

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