AnswersFA Vandergrift Environmental Science 2026-27The Importance of Trees

Topic Test Answers

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61
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The first step in restoring pine woodlands is prescribed burning.

A
T
B
F
62
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The fruit of trees is the only part that is used by humans for food.

A
T
B
F
63

Why have forest fires in ponderosa pine forests become more damaging to that ecosystem than they were historically?

A
Following a policy of fire suppression in these forests makes fires burn hotter.
B
Fires in ponderosa pine forests are generally low-intensity fires.
C
Following a policy of fire suppression in these forests clears out underbrush..
D
Forest fires are a natural part of ponderosa pines forest ecosystems.
64

Mycorrhizal fungi are _______.

A
mutualistic root-dwelling fungi that help plants obtain more water and nutrients.
B
mutualistic leaf-dwelling fungi that obtain sugar from plant leaves
C
parasitic leaf-dwelling fungi that strangle plants
D
epiphytic plants living on plant stems and leaves
65

Which of the following about carbon sinks is not true?

A
They emit more carbon than they take in.
B
They take in more carbon they emit.
C
They store carbon from the atmosphere.
D
They include oceans and forests.
66

Which of the following statements about the use of prescribed fires in the Everglades is true?

A
It controls the amount of moisture in the environment.
B
It controls the spread of exotic organisms.
C
It helps maintain plant communities.
D
All of the above
67

Why are environmentalists concerned about the introduction of genetically engineered trees?

A
Genetically engineered trees are not regulated.
B
Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
C
Genetically engineered trees decrease the biodiversity of natural ecosystems.
D
All of the above
68

In order to construct a valid criticism, it is important to _______.

A
come up with a list of your opinions on the subject
B
get the opinion of a peer on the subject
C
research data on the subject, and analyze it for reliability
D
consider only one factor that may contribute to a possible outcome
69

The sustainable use of rainforest resources is exemplified by _______.

A
lumber harvesting
B
ranching
C
harvesting nuts
D
none of the above
70

Why is clearcutting an especially damaging forestry practice for species that rely upon older trees for their survival?

A
Clearcutting removes all trees in a stand, old and young.
B
Clearcutting specifically removes older trees in a stand.
C
Clearcutting forces younger trees to mature faster.
D
Clearcutting is not a damaging forestry practice.
71

Human impact on trees has been completely negative.

A
T
B
F
72

What is a likely consequence of preventing prescribed burns to forest ecosystems?

A
Natural wildfires will burn longer and hotter when they occur because there is more underbrush and fuel available.
B
Forest ecosystems will remain healthier overall, due to retention of habitats.
C
Home owners will be better protected against damage from natural wildfires.
D
Natural wildfires will occur less frequently.
73

How are the benefits of wildfires in deciduous and northern forests similar?

A
increased tree quantity
B
increased amount of lichens
C
increased nutritional value of growth
D
all of the above
74

How are forest fires beneficial to conifers like Jack Pines?

A
Jack pine seeds are protected by forest fires.
B
Pine cones are carried on the winds produced by forest fires.
C
Forest fires release the seeds stored in Jack pine cones.
D
All of the above.
75

Which of the following is not a way in which trees benefit the environment?

A
They remove a significant amount of carbon dioxide from the atmosphere.
B
They remove a significant amount of oxygen from the atmosphere.
C
Their roots hold soil in place, reducing rates of erosion.
D
They remove ozone and particulates from the atmosphere.
76

Which of the following is not true concerning rainforests?

A
Rainforests are responsible for most global oxygen turnover.
B
The undergrowth of rainforests is choked by weeds and plants.
C
Rainforests are characterized by high levels of rainfall.
D
Not all rainforests are tropical rainforests.
77

Which of the following are important products of rainforests?

A
timber
B
pharmaceuticals
C
oxygen
D
all of the above
78

In creating products from trees with modern technology, only half of the tree can be used. Please select the best answer from the choices provided

A
T
B
F
79

Which of the following is not part of the role of a forester?

A
develop sustainable practices
B
prevent removal of timber
C
determine means for continued growth
D
assess timber quality
80

Which of the following reasons did you include in your answer?

A
They were declaring their own independence.
B
They were claiming that the Declaration of Independence applied to women as well as men.
C
They were pointing out that men claimed rights for themselves that were denied to women.
D
They were appealing to the patriotism and emotions of the public.

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