Question 1

Most hydrocarbons in the atmosphere in rural areas arise from

Accepted Answer

A) automobile exhaust. 
B) evaporation of gasoline. 
C) industrial emissions. 
D) natural sources. 
A) automobile exhaust. 
B) evaporation of gasoline. 
C) industrial emissions. 
D) natural sources.

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

The ultimate source of radon in the environment is from the radioactive decay of naturally occurring

Accepted Answer

A) uranium. 
B) xenon. 
C) thorium. 
D) polonium. 
A) uranium. 
B) xenon. 
C) thorium. 
D) polonium.

Question 5

UV light is used to

Accepted Answer

A) sterilize tools in hair salons. 
B) cook food. 
C) melt ice. 
D) melt metal. 
A) sterilize tools in hair salons. 
B) cook food. 
C) melt ice. 
D) melt metal.

Question 6

The main difference between air pollution problems today and problems in the past is

Accepted Answer

A) global warming. 
B) less polar ice. 
C) it is now a worldwide problem. 
D) less rainfall. 
A) global warming. 
B) less polar ice. 
C) it is now a worldwide problem. 
D) less rainfall.

Question 7

Sulfur dioxide reacts with oxygen to form

Accepted Answer

A) SO₃. 
B) S₂O₃. 
C) S₃O₅. 
D) H₂SO₄. 
A) SO₃. 
B) S₂O₃. 
C) S₃O₅. 
D) H₂SO₄.

Question 8

Most hydrocarbons in the urban areas arise from

Accepted Answer

A) burning coal. 
B) processing and use of gasoline. 
C) industrial emissions. 
D) natural sources. 
A) burning coal. 
B) processing and use of gasoline. 
C) industrial emissions. 
D) natural sources.

Question 9

One of the earliest recorded examples of polluted air was written about by the Roman ________ in 61 A.D.

Accepted Answer

A) Caesar Augustus 
B) Seneca 
C) Cato the Elder 
D) Pliny 
A) Caesar Augustus 
B) Seneca 
C) Cato the Elder 
D) Pliny

Question 10

The layer of the atmosphere in which we interact is called the stratosphere.

Accepted Answer

A) True 
 B)False

Question 11

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.

Question 12

Most of the carbon monoxide found in the atmosphere does not come from natural sources.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements about ozone is correct?

Accepted Answer

A) Ozone is a pollutant in both the troposphere and the stratosphere. 
B) Ozone is a pollutant in the troposphere but not in the stratosphere. 
C) Ozone is a pollutant in the stratosphere but not in the troposphere. 
D) Ozone is a not a pollutant in either the troposphere or the stratosphere. 
A) Ozone is a pollutant in both the troposphere and the stratosphere. 
B) Ozone is a pollutant in the troposphere but not in the stratosphere. 
C) Ozone is a pollutant in the stratosphere but not in the troposphere. 
D) Ozone is a not a pollutant in either the troposphere or the stratosphere.

Question 14

Describe one method for the removal of particulates from smokestack gases.

Accepted Answer

One method for the removal of particulat

Question 15

Which is classified as a "greenhouse gas"?

Accepted Answer

A) helium 
B) oxygen 
C) iodine 
D) nitrous oxide 
A) helium 
B) oxygen 
C) iodine 
D) nitrous oxide

Question 16

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 17

A single CFC molecule will result in the destruction of a single O₃ molecule.

Accepted Answer

A) True 
 B)False

Question 18

In the stratosphere,the reactivity of CFCs is

Accepted Answer

A) low. 
B) moderate. 
C) high. 
D) comparable to neon. 
A) low. 
B) moderate. 
C) high. 
D) comparable to neon.

Question 19

Hydrofluorocarbons (HFCs)and hydrochlorofluorocarbons (HCFCs)are good substitutes for chlorofluorocarbons (CFCs)because

Accepted Answer

A) they are also greenhouse gases. 
B) C-F bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere. 
C) C-H bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere. 
D) they are too heavy to reach the stratosphere. 
A) they are also greenhouse gases. 
B) C-F bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere. 
C) C-H bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere. 
D) they are too heavy to reach the stratosphere.

Question 20

A definition of a pollutant is a chemical

Accepted Answer

A) in the wrong place but at the right concentration. 
B) in the wrong place or at the wrong concentration. 
C) in the right place but at the wrong concentration. 
D) in the right place and at the right concentration. 
A) in the wrong place but at the right concentration. 
B) in the wrong place or at the wrong concentration. 
C) in the right place but at the wrong concentration. 
D) in the right place and at the right concentration.

Exam 13: Air

Most hydrocarbons in the atmosphere in rural areas arise from

The ozone layer over Antarctica is its largest in

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

The ultimate source of radon in the environment is from the radioactive decay of naturally occurring

UV light is used to

The main difference between air pollution problems today and problems in the past is

Sulfur dioxide reacts with oxygen to form

Most hydrocarbons in the urban areas arise from

One of the earliest recorded examples of polluted air was written about by the Roman ________ in 61 A.D.

The layer of the atmosphere in which we interact is called the stratosphere.

Catalytic converters on automobiles are designed to reduce the emission of

Most of the carbon monoxide found in the atmosphere does not come from natural sources.

Which of the following statements about ozone is correct?

Describe one method for the removal of particulates from smokestack gases.

Which is classified as a "greenhouse gas"?

Organic substances that undergo significant evaporation at ordinary temperatures are

A single CFC molecule will result in the destruction of a single O₃ molecule.

In the stratosphere,the reactivity of CFCs is

Hydrofluorocarbons (HFCs)and hydrochlorofluorocarbons (HCFCs)are good substitutes for chlorofluorocarbons (CFCs)because

A definition of a pollutant is a chemical

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