ENVS 1126 EXAM 2 Questions and Correct
Answers
The price of gas today is very low. Which one of the following is a
potential unfavorable environmental outcome that could result
from today's low gas prices. Ans: Lower prices could encourage
drivers to take more frequent and-or longer road trips.
This is not a consequence of urban sprawl: Ans: Lower incidence
of obesity and high blood pressure
How might coral bleaching in the ocean be caused by urban
sprawl? Ans: Cutting down trees-->Decreased removal of CO2
from atmosphere-->increased CO2 in atmosphere-->increased CO2
in ocean-->decreased ocean pH-->unhappy zooxanthellae (colorful
symbiotic algae)-->Algae and color go away
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, 2 | Page
Which one of the following most likely describes (and provides an
example of) a city with a high degree of urban blight and a low
degree of urban sprawl? Ans: Low car ownership levels, high
density housing, strained public resources, less air pollution e.g.,
New York, NY
The ability of an ecosystem to replenish itself leads to Ans:
Sustainability
When completed, the Comprehensive Everglades Restoration Plan
will Ans: Redirect much of the water flow southward
We can expect that as mangroves continue to be destroyed
worldwide Ans: coastal erosion will increase.
.Compared to forests using sustainable forest management,
commercial forests managed for maximum sustainable yield of
commercially valuable species will most likely Ans: have greater
erosion problems.
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, 3 | Page
The growth of the global fish harvest in the last 20 years has
mostly been due to increases in what? Ans: aquaculture
An example of consumptive use of a natural resource is ____. Ans:
wild boar (pigs) hunted for personal use (eating)
The maximum population of a given species that an ecosystem can
support without being degraded or destroyed in the long run is
called Ans: Carrying Capacity
The maximum sustainable yield for most populations must be
recalculated every year because Ans: Changing environmental
conditions create variations in carrying capacity
Maximum Sustainable yield is ____. Ans: The maximum amount of
a resource that can be taken out while the system
still maintains or replenishes.
The greatest potential for sustainable growth in fisheries is in ____.
Ans: Aquaculture
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