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End of Chapter Quiz
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1
"Gray-air cities" are the result of
A)biological magnification of air pollutants.
B)chlorinated hydrocarbons as a major air pollutant.
C)pesticides as a major air pollutant.
D)sulfur oxides as a major air pollutant.
2
The main cause of acid rain is
A)car and truck exhaust.
B)coal powered industry.
C)chlorofluorocarbons.
D)chlorinated hydrocarbons.
3
Destruction of the ozone layer is due to
A)car and truck exhaust.
B)coal powered industry.
C)chlorofluorocarbons.
D)chlorinated hydrocarbons.
4
Which of the following is not a gas that contributes to the greenhouse effect?
A)ammonia
B)nitrogen oxides
C)methane
D)CFCs
5
Introduced species can reduce the biodiversity of an area because they
A)may be better competitors for resources than native species.
B)don't have natural predators in the new environment.
C)may have more effective adaptations for the environment than native organisms do.
D)All answers are correct.
6
Free market economies often promote pollution. This is because
A)environmental costs are hardly ever recognized as part of the economy.
B)since supply never keeps up with demand, so industry must increase output to address the demand.
C)the cost of energy and raw materials are so variable.
D)laws about pollution are unenforceable.
7
Preserving biodiversity is
A)needed to preserve possible direct value from species, such as new medicines.
B)not needed as extinction is a "natural" cycle and should not be disturbed.
C)needed to make sure all niches are filled.
D)not needed as it interferes with industrial development.
8
Which factor is not responsible for the large increase in the human population over the last 300 or so years?
A)larger and more reliable food reserves from the modernization of farming techniques
B)decreasing mortality rate due to improvements in medicine
C)increasing amounts of open space as countries develop
D)increased sanitation practices
9
Removal of the endangered black-footed ferret and California condor populations from the wild for breeding programs in zoos and field laboratories preserves endangered species through
A)pristine restoration.
B)habitat restoration.
C)habitat rehabilitation.
D)captive propagation.
10
If the removal of a species causes an ecosystem to collapse, that species is known as a(n)
A)keystone species.
B)endangered species.
C)threatened species.
D)No answer is correct.





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