Land Title: Environmental Science: Systems and Solutions, Fourth Edition Authors: Michael I. McKinney, Robert M. Schoch, Logan Yonavjak
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Practice Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results.

1:  The most common gas in the atmosphere is
A: oxygen.
B: nitrogen.
C: carbon dioxide.
D: hydrogen.

2:  Which of the following are variable gases in the atmosphere?
A: oxygen, ozone, and water
B: nitrogen, carbon dioxide, and ozone
C: oxygen, carbon dioxide, and nitrogen
D: ozone, carbon dioxide, and water

3:  Which of the following patterns is true about air pollution in the U.S.?
A: All pollutants have decreased significantly since 1970 due to increased pollution controls.
B: Transportation is the largest source of carbon monoxide, volatile organic compounds, and nitrogen oxides.
C: Stationary fuel combustion is the largest source of nitrogen oxides.
D: Transportation is the largest source of particulates.

4:  Which of the following is NOT true about particulates?
A: They are the single most damaging air pollutant to lungs.
B: Toxic chemicals tend to attach to the surface of soot particles.
C: Particulate toxicity is especially pronounced in infants.
D: Most particulate pollution is natural, not man-made.

5:  More than 70 percent of sulfur oxide air pollution in the U.S. is generated by
A: coal-burning electric power plants.
B: trucks and automobiles.
C: chemical smelting plants.
D: nuclear power plants.

6:  Which of the following is NOT an effect of sulfur oxide emissions?
A: acid rain
B: stunted growth in plants
C: irritation of mucous linings
D: destruction of ozone

7:  Which of the following is true about acid rain?
A: It is considered acid rain when the pH is below 5.6.
B: Tall smoke stacks decrease the rate of acid rain formation.
C: Acid rain generally forms downwind from its source.
D: The greatest contributor to acid rain are nitrous oxides.

8:  Which of the following would be the most effective and cheapest way of reducing the incidence of acid rain?
A: burn low sulfur coal
B: build taller smoke stacks
C: install smoke stack scrubbers
D: build electric cars

9:  At present, why is the burning of low sulfur coal not a viable alternative?
A: Low sulfur coal is scarce.
B: It is too expensive to wash out the sulfur from high sulfur coal.
C: Low sulfur coal contains too many other impurities.
D: Low sulfur coal is located too far from where it is used.

10:  Sulfur oxide pollution is most serious in
A: wealthy countries.
B: poor countries.
C: countries of intermediate wealth.
D: all countries.

11:  The most abundant and destructive photochemical pollutant in smog is (are)
A: particulates.
B: SOx.
C: NOx.
D: ozone.

12:  The largest source of photochemical smog, especially in sunny climates like LA, is
A: automobiles.
B: electric power plants.
C: chemical plants.
D: trash burnings.

13:  Which of the following is true about carbon monoxide?
A: It acts as a poison by directly interfering with enzyme systems.
B: It is produced under conditions of incomplete combustion.
C: The main source of carbon monoxide emissions is coal-burning electrical power plants.
D: It is a by-product produced during the combustion of organic fuels at high temperatures.

14:  Which of the following is true about catalytic converters?
A: They are precombustion devices.
B: They easily reduce NOx as well as CO emissions.
C: They are cheaper than most other methods.
D: They increase fuel economy and engine performance.

15:  Which of the following is true concerning the oxygenation of gasoline?
A: It increases fuel efficiency.
B: It is a postcombustion process.
C: It has been well-received by the public.
D: It decreases CO emissions.

16:  Which of the following is NOT true of methanol as a fuel?
A: Its combustion produces less NOx and CO than gasoline.
B: Its combustion emits formaldehyde.
C: It has a low energy content.
D: It has a lower octane rating than gasoline.

17:  Which of the following is true of thermal inversions?
A: It is a condition where cooler air overlies warmer air.
B: They are most common during the day.
C: They concentrate air pollution.
D: They more commonly occur near the ocean and over flat country.

18:  Which of the following statements is true?
A: Clunkers (old cars) emit over one-half of vehicle smog.
B: Small machines, like leaf blowers, emit only a fraction of the pollutants emitted by vehicles.
C: Installation of emission controls on lawn and garden equipment will not affect their prices.
D: Riding mowers produce more pollutants than chain saws per unit time of operation.

19:  Which of the following is true of radon pollution?
A: The most common result of radon pollution is bone cancer.
B: Radon is a gas, a radioactive decay product of polonium.
C: The best way of dealing with radon pollution is to increase ventilation.
D: The harm from radon pollution is as well-established as the harm from cigarette smoke.

20:  Identify the most harmful source of indoor combustion pollution.
A: fireplaces
B: cigarettes
C: propane heaters
D: wood stoves

21:  Which of the following is true about noise pollution?
A: Hearing damage begins at around 50 dB.
B: a car muffler is an example of acoustical material.
C: Cotton is an effective acoustical material when inserted into the ear.
D: Noise at any level can be damaging if the exposure is long enough.

22:  How much louder is a room whose noise level registers 60 decibels as opposed to one who registers 40?
A: 10 times
B: 100 times
C: 1,000 times
D: 10,000 times

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Link: Jones and Bartlett Publishers