Question 1

The concentration of air pollutants is almost always lower indoors than outdoors.

Accepted Answer

A) True 
 B)False  False

Question 2

The impact of CFCs on the ozone layer is amplified by the fact that

Accepted Answer

A) CFCs replicate in the stratosphere. 
B) CFCs decompose before reaching the stratosphere. 
C) CFCs react with oxygen to produce many reactive intermediates. 
D) one CFC molecule will lead to the decomposition of many ozone molecules. 
A) CFCs replicate in the stratosphere. 
B) CFCs decompose before reaching the stratosphere. 
C) CFCs react with oxygen to produce many reactive intermediates. 
D) one CFC molecule will lead to the decomposition of many ozone molecules. D

Question 3

A major source of oxygen on Earth is

Accepted Answer

A) snow. 
B) ocean-based phytoplankton. 
C) plants. 
D) decomposition of water in the oceans. 
A) snow. 
B) ocean-based phytoplankton. 
C) plants. 
D) decomposition of water in the oceans. B

Question 4

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 5

An atmospheric inversion is a phenomenon that may have disastrous effects with respect to air pollution.An atmospheric inversion occurs when a

Accepted Answer

A) lower layer of cool air is trapped by an upper layer of warmer air. 
B) lower layer of warm air is trapped by an upper layer of cooler air. 
C) lower layer of oxygen rich air is trapped by an upper layer of oxygen deficient air. 
D) lower layer of oxygen deficient air is trapped by an upper layer of oxygen rich air. 
A) lower layer of cool air is trapped by an upper layer of warmer air. 
B) lower layer of warm air is trapped by an upper layer of cooler air. 
C) lower layer of oxygen rich air is trapped by an upper layer of oxygen deficient air. 
D) lower layer of oxygen deficient air is trapped by an upper layer of oxygen rich air.

Question 6

With respect to reactivity,oxygen is best classified as

Accepted Answer

A) highly reactive. 
B) somewhat reactive. 
C) relatively unreactive. 
D) comparable to helium in its reactivity. 
A) highly reactive. 
B) somewhat reactive. 
C) relatively unreactive. 
D) comparable to helium in its reactivity.

Question 7

Sulfur dioxide is readily absorbed in the respiratory system,where it is

Accepted Answer

A) soothing. 
B) a powerful irritant. 
C) mildly irritating. 
D) unreactive. 
A) soothing. 
B) a powerful irritant. 
C) mildly irritating. 
D) unreactive.

Question 8

Los Angeles smog is more commonly referred to as ________ smog.

Accepted Answer

The answer of Los Angeles smog is more commonly referred...

Question 9

Which of the following activities would NOT lower the amount of CO₂ in the atmosphere?

Accepted Answer

A) building coal-fired power plants 
B) concentrating emitted CO₂ in large underground reservoirs 
C) planting trees 
D) stopping deforestation 
A) building coal-fired power plants 
B) concentrating emitted CO₂ in large underground reservoirs 
C) planting trees 
D) stopping deforestation

Question 10

Unburned carbon produced during the inefficient burning of coal is called

Accepted Answer

A) ash. 
B) soot. 
C) carbon dioxide. 
D) clinkers. 
A) ash. 
B) soot. 
C) carbon dioxide. 
D) clinkers.

Question 11

The two principal sources of acid rain are ________ emissions from power plants and ________ emissions from automobiles and power plants.

Accepted Answer

A) sulfur monoxide; ozone 
B) ozone; nitrogen monoxide 
C) carbon dioxide; nitrogen monoxide 
D) sulfur dioxide; nitrogen monoxide 
A) sulfur monoxide; ozone 
B) ozone; nitrogen monoxide 
C) carbon dioxide; nitrogen monoxide 
D) sulfur dioxide; nitrogen monoxide

Question 12

At the high temperature in an internal combustion engine,a fraction of the nitrogen in air is converted to

Accepted Answer

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

Question 13

Nanoscale catalysts show great promise for making chemical processes more efficient and thus saving resources.

Accepted Answer

A) True 
 B)False

Question 14

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 15

Which of the following pollutants has the least environmental effect?

Accepted Answer

A) carbon monoxide 
B) nitrogen oxides 
C) ozone 
D) sulfur oxides 
A) carbon monoxide 
B) nitrogen oxides 
C) ozone 
D) sulfur oxides

Question 16

Which of the following gases is most efficient at trapping atmospheric heat?

Accepted Answer

A) carbon dioxide (CO₂) 
B) nitrogen trifluoride (NF₃) 
C) water (H₂O) 
D) methane (CH₄) 
A) carbon dioxide (CO₂) 
B) nitrogen trifluoride (NF₃) 
C) water (H₂O) 
D) methane (CH₄)

Question 17

The word smog is believed to have originated in

Accepted Answer

A) London. 
B) Los Angeles. 
C) Mexico City. 
D) Japan. 
A) London. 
B) Los Angeles. 
C) Mexico City. 
D) Japan.

Question 18

The primary reaction in the formation of photochemical smog is

Accepted Answer

A) 2 NO + O₂ → 2 NO₂. 
B) NO₂ + sunlight → NO + O. 
C) O + O₂ → O₃. 
D) O₃ + hydrocarbons → aldehydes. 
A) 2 NO + O₂ → 2 NO₂. 
B) NO₂ + sunlight → NO + O. 
C) O + O₂ → O₃. 
D) O₃ + hydrocarbons → aldehydes.

Question 19

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.

Question 20

The only symptom of carbon monoxide poisoning is usually ________.

Accepted Answer

The answer of The only symptom of carbon monoxide poisoning...

Exam 13: Air

The concentration of air pollutants is almost always lower indoors than outdoors.

The impact of CFCs on the ozone layer is amplified by the fact that

A major source of oxygen on Earth is

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

An atmospheric inversion is a phenomenon that may have disastrous effects with respect to air pollution.An atmospheric inversion occurs when a

With respect to reactivity,oxygen is best classified as

Sulfur dioxide is readily absorbed in the respiratory system,where it is

Los Angeles smog is more commonly referred to as ________ smog.

Which of the following activities would NOT lower the amount of CO₂ in the atmosphere?

Unburned carbon produced during the inefficient burning of coal is called

The two principal sources of acid rain are ________ emissions from power plants and ________ emissions from automobiles and power plants.

At the high temperature in an internal combustion engine,a fraction of the nitrogen in air is converted to

Nanoscale catalysts show great promise for making chemical processes more efficient and thus saving resources.

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

Which of the following pollutants has the least environmental effect?

Which of the following gases is most efficient at trapping atmospheric heat?

The word smog is believed to have originated in

The primary reaction in the formation of photochemical smog is

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

The only symptom of carbon monoxide poisoning is usually ________.

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The two principal sources of acid rain are emissions from power plants and emissions from automobiles and power plants.