Environmental Engineering Reference
In-Depth Information
C.
The owner has been considering replacing the air-conditioning unit because it is more than 25 years
old. Discuss one environmental cost and one environmental benefit of replacing the air-condition-
ing unit, and one economic cost and one economic benefit of replacing the unit.
3.
A type of bacterium called fire blight is destroying partial and full trees in a large portion of a pear orch-
ard. Fire blight is spread via insects, pruning tools, and water splash. As always, the orchard owner uses
a fungicide spray that has been effective at controlling the blight in previous seasons. Recent applica-
tions, though, have not been as successful, with each application killing a lower and lower percentage
of the bacterium. It is apparent that the blight has become resistant to the used fungicide.
A.
Explain how bacteria could develop resistance to a fungicide.
B.
Give two examples of how bacterial resistance to fungicide can economically impact orchard own-
ers.
C.
Explain one alternative to fungicide that may help the orchardist manage the spread of fire blight.
D.
Describe an example of how the development of bacterial resistance can affect human health.
4.
A forest ecosystem is destroyed by a volcanic eruption. There are many steps involved in the process of
regrowth.
A.
Discuss which type of succession would follow this disturbance.
B.
Explain the role of a pioneer species in succession. What is an example of a pioneer species? Why
are some organisms successful as pioneer species?
C.
Discuss a climax community.
D.
Explain the concept of resilience.
E.
Discuss how humans have impacted the cycle of succession.
If you finish before time is called, check your work on this section only. Do not work on any other section in
the Test.
Answer Key
Section I: Multiple-Choice Questions
1.
D
2.
C
3.
E
4.
B
5.
B
6.
D
7.
A
8.
A
