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1
The increasing concentration of a chemical as it moves through the links in a food chain is called ________.
A)chemical amplification
B)biological amplification
C)biological magnification
D)trophic magnification
2
How does DDT endanger bird species?
A)causes sterilization of females.
B)causes fatal damage to the liver.
C)destroys required nesting habitats.
D)causes production of thin, fragile eggs.
3
Acidification of the oceans results from high ________ levels.
A)carbon dioxide
B)sulfur dioxide
C)sulfates
D)ozone
E)CFC
4
Which of the following does global warming effect?
A)rain patterns
B)agriculture
C)sea levels
D)All of these choices are correct.
5
Which is the most important cause of extinction?
A)species overexploitation
B)habitat loss
C)introduced species
6
_____________ is a method of habitat destruction that involves dividing a habitat into small isolated areas.
A)Encroachment
B)Fission
C)Displacement
D)Fragmentation
7
Which of the following drove the passenger pigeon to extinction?
A)overexploitation
B)habitat loss
C)introduced species
D)predation
8
Which gas is related to the development of the ozone hole?
A)methane
B)chlorofluorocarbons
C)carbon dioxide
D)sulfur dioxide
9
_____________ catalyzes the reaction that converts O3 into O2.
A)CH4
B)DDT
C)CO2
D)CFC
10
Which of the following would be related to a decrease is ozone in the atmosphere?
A)decrease in biodiversity
B)increase in skin cancer
C)global warming
D)habitat loss
11
Which of the following contributes to CFC production?
A)refrigerator coolant
B)aerosol gas
C)styrofoam
D)All of these choices are correct.
12
Which of the following is a nonreplaceable resource?
A)biodiversity
B)groundwater
C)top soil
D)All of these choices are correct.
13
Which value of biodiversity is hardest to put a price on?
A)value from products obtained
B)value from ecosystem maintenance
C)aesthetic value
14
The human population shows _________________ growth.
A)sigmoidal
B)logistic
C)exponential
D)declining
15
A country with a population pyramid that is triangular is
A)increasing in population size.
B)decreasing in population size.
C)characterized by having a stable population size.
16
Which population has benefited most from captive propagation efforts?
A)peregrine falcon
B)black rhino
C)flying fox
D)brown pelican
17
Which is an example of a keystone species?
A)peregrine falcon
B)black rhino
C)flying foxes
D)brown pelicans
18
Which is not an alternate energy source?
A)solar
B)wind
C)coal
D)nuclear
19
The carbon dioxide released by burning ethanol was recently captured by plants during the process of ______________.
A)photorespiration
B)cellular respiration
C)fermentation
D)photosynthesis
20
Cars that can burn both gasoline and an ethanol blend are called ___________ vehicles.
A)hybrid
B)flex fuel
C)electric
D)diesel





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