Question 1

Sulfuric acid is less irritating to the respiratory system than sulfur dioxide is.

Accepted Answer

A) True 
 B)False  False

Question 2

The World Health Organization estimates that over 3.0 million people die from indoor or outdoor air pollution every year.

Accepted Answer

A) True 
 B)False  False

Question 3

Catalytic converters on automobiles are designed to reduce the emission of

Accepted Answer

A)  nitrogen oxides. 
B)  carbon monoxide. 
C)  carbon dioxide. 
D)  sulfur oxides. 
A)  nitrogen oxides. 
B)  carbon monoxide. 
C)  carbon dioxide. 
D)  sulfur oxides. B

Question 4

One of the steps in the nitrogen cycle produces nitrogen dioxide.

Accepted Answer

A) True 
 B)False

Question 5

CFCs are inert in the troposphere and reactive in the stratosphere.

Accepted Answer

A) True 
 B)False

Question 6

What factors would you need to include in a complete evaluation of the environmental cost of a gasoline-electric hybrid vehicle?

Accepted Answer

A complete evaluation of the environment

Question 7

Explain how ozone can be both an air pollutant and a necessary component in the earth's atmosphere.

Accepted Answer

Ozone can be both an air pollutant and a

Question 8

Photochemical smog is more likely to occur in cold and wet conditions.

Accepted Answer

A) True 
 B)False

Question 9

When gasoline undergoes complete combustion, carbon dioxide and water are produced. However, these reactions are generally incomplete combustions, and there are side reactions which produce small amounts of harmful products. These pollutants include all of the following EXCEPT

Accepted Answer

A)  carbon monoxide. 
B)  lead. 
C)  nitrogen oxides. 
D)  volatile organic compounds. 
A)  carbon monoxide. 
B)  lead. 
C)  nitrogen oxides. 
D)  volatile organic compounds.

Question 10

Sunlight breaks down nitrogen dioxide into nitric oxide and oxygen atoms.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements about particulate particles is NOT correct?

Accepted Answer

A)  They are easier to remove from factory exhaust than sulfur dioxide is. 
B)  They can sometimes be seen in the air as dust or smoke. 
C)  Particles that are less than 10 µm in diameter are more dangerous than larger particles are. 
D)  Less than 10% of the counties in the United States have particle pollution levels that exceed the EPA's standards. 
A)  They are easier to remove from factory exhaust than sulfur dioxide is. 
B)  They can sometimes be seen in the air as dust or smoke. 
C)  Particles that are less than 10 µm in diameter are more dangerous than larger particles are. 
D)  Less than 10% of the counties in the United States have particle pollution levels that exceed the EPA's standards.

Question 12

Discuss how oxygen atoms promote the formation of a variety of substances in smog.

Accepted Answer

Oxygen atoms play a crucial role in prom

Question 13

The ozone layer over Antarctica is its largest in

Accepted Answer

A)  September. 
B)  January. 
C)  May. 
D)  October. 
A)  September. 
B)  January. 
C)  May. 
D)  October.

Question 14

Urban smog contains several air pollutants, including ozone. For a typical sunny day, when would you expect the concentration of ozone to be highest?

Accepted Answer

A)  midnight 
B)  6 a.m. 
C)  noon 
D)  6 p.m. 
A)  midnight 
B)  6 a.m. 
C)  noon 
D)  6 p.m.

Question 15

Which of the following statements about catalytic converters is NOT correct?

Accepted Answer

A)  The reaction surface area is unrelated to the efficiency of the converter. 
B)  They use a metal catalyst such as Pt or Pd. 
C)  They catalyze the conversion of hydrocarbons, carbon monoxide and nitrogen oxides to less harmful compounds. 
D)  The catalyst adheres either to a honeycomb support or to small ceramic beads. 
A)  The reaction surface area is unrelated to the efficiency of the converter. 
B)  They use a metal catalyst such as Pt or Pd. 
C)  They catalyze the conversion of hydrocarbons, carbon monoxide and nitrogen oxides to less harmful compounds. 
D)  The catalyst adheres either to a honeycomb support or to small ceramic beads.

Question 16

The second most abundant component of dry air is

Accepted Answer

A)  argon. 
B)  carbon dioxide. 
C)  nitrogen. 
D)  oxygen. 
A)  argon. 
B)  carbon dioxide. 
C)  nitrogen. 
D)  oxygen.

Question 17

The most abundant component of dry air is

Accepted Answer

A)  radon. 
B)  carbon monoxide. 
C)  nitrogen. 
D)  helium. 
A)  radon. 
B)  carbon monoxide. 
C)  nitrogen. 
D)  helium.

Question 18

Organic substances that undergo significant evaporation at ordinary temperatures are

Accepted Answer

A)  lead-containing compounds. 
B)  nitrogen oxides. 
C)  sulfur oxides. 
D)  volatile organic compounds (VOCs). 
A)  lead-containing compounds. 
B)  nitrogen oxides. 
C)  sulfur oxides. 
D)  volatile organic compounds (VOCs).

Question 19

The greenhouse effect occurs because greenhouse gases, such as carbon dioxide, absorb infrared energy and prevent heat from escaping into space.

Accepted Answer

A) True 
 B)False

Question 20

In order for nitrogen to be used by most plants and all animals, it must be

Accepted Answer

A)  separated. 
B)  purified. 
C)  liquefied. 
D)  fixed. 
A)  separated. 
B)  purified. 
C)  liquefied. 
D)  fixed.

Exam 13: Air

Sulfuric acid is less irritating to the respiratory system than sulfur dioxide is.

The World Health Organization estimates that over 3.0 million people die from indoor or outdoor air pollution every year.

Catalytic converters on automobiles are designed to reduce the emission of

One of the steps in the nitrogen cycle produces nitrogen dioxide.

CFCs are inert in the troposphere and reactive in the stratosphere.

What factors would you need to include in a complete evaluation of the environmental cost of a gasoline-electric hybrid vehicle?

Explain how ozone can be both an air pollutant and a necessary component in the earth's atmosphere.

Photochemical smog is more likely to occur in cold and wet conditions.

When gasoline undergoes complete combustion, carbon dioxide and water are produced. However, these reactions are generally incomplete combustions, and there are side reactions which produce small amounts of harmful products. These pollutants include all of the following EXCEPT

Sunlight breaks down nitrogen dioxide into nitric oxide and oxygen atoms.

Which of the following statements about particulate particles is NOT correct?

Discuss how oxygen atoms promote the formation of a variety of substances in smog.

The ozone layer over Antarctica is its largest in

Urban smog contains several air pollutants, including ozone. For a typical sunny day, when would you expect the concentration of ozone to be highest?

Which of the following statements about catalytic converters is NOT correct?

The second most abundant component of dry air is

The most abundant component of dry air is

Organic substances that undergo significant evaporation at ordinary temperatures are

The greenhouse effect occurs because greenhouse gases, such as carbon dioxide, absorb infrared energy and prevent heat from escaping into space.

In order for nitrogen to be used by most plants and all animals, it must be

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