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APEA Questions and Correct Answers/
Latest Update / Already Graded
Which of the following best describes an environmental
disadvantage of using industrial scrubbers and electrostatic
precipitators for pollution abatement?
Ans: Coal ash contains toxic levels of several different pollutants, so when
it is collected and stored long-term in coal ash ponds, there is increased
risk of exposure to toxic metals.
Which of the following best explains an anthropogenic cause of the
trend illustrated on the graph?
Ans: Increased atmospheric CO2CO2 concentrations from burning of
fossil fuels and vehicle emissions are contributing to ocean acidification.
Which of the following would be the best way to mitigate
deforestation?
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Ans: Replant and protect trees in areas that have been previously
cleared.
A local citizen science group is monitoring the water quality of a
nearby lake. They gather water samples once a week on
Wednesday between the hours of 7 A.M. and 9 A.M. from the same
location. One day in August they were unable to sample within that
time frame and collected the sample at 3 P.M.
How might this modification to the sampling procedure affect the
results?
Ans: Water sampled later in the day may be warmer and therefore have
lower dissolved oxygen levels.
Which of the following best describes one way the Clean Air Act
helped reduce air pollution?
APEA Questions and Correct Answers/
Latest Update / Already Graded
Which of the following best describes an environmental
disadvantage of using industrial scrubbers and electrostatic
precipitators for pollution abatement?
Ans: Coal ash contains toxic levels of several different pollutants, so when
it is collected and stored long-term in coal ash ponds, there is increased
risk of exposure to toxic metals.
Which of the following best explains an anthropogenic cause of the
trend illustrated on the graph?
Ans: Increased atmospheric CO2CO2 concentrations from burning of
fossil fuels and vehicle emissions are contributing to ocean acidification.
Which of the following would be the best way to mitigate
deforestation?
, 2 | Page
Ans: Replant and protect trees in areas that have been previously
cleared.
A local citizen science group is monitoring the water quality of a
nearby lake. They gather water samples once a week on
Wednesday between the hours of 7 A.M. and 9 A.M. from the same
location. One day in August they were unable to sample within that
time frame and collected the sample at 3 P.M.
How might this modification to the sampling procedure affect the
results?
Ans: Water sampled later in the day may be warmer and therefore have
lower dissolved oxygen levels.
Which of the following best describes one way the Clean Air Act
helped reduce air pollution?
