Question 1

The industrial fixation of nitrogen to produce nitrogen fertilizers has drastically increased food supply primarily because

Accepted Answer

A) plants need nitrogen. 
B) plants fix nitrogen slowly. 
C) the availability of fixed nitrogen is often a limiting factor in plant growth. 
D) nitrogen in the atmosphere has decreased over the past two centuries. 
A) plants need nitrogen. 
B) plants fix nitrogen slowly. 
C) the availability of fixed nitrogen is often a limiting factor in plant growth. 
D) nitrogen in the atmosphere has decreased over the past two centuries.

Question 2

What crucial role does sunlight play in photochemical smog?

Accepted Answer

Sunlight plays a crucial role in the for

Question 3

Carbon monoxide blocks the ability of ________ to bind and transport ________.

Accepted Answer

The answer of Carbon monoxide blocks the ability of ________...

Question 4

Pollution levels are not affected by temperature inversions.

Accepted Answer

A) True 
 B)False

Question 5

Which one of the following is NOT a property of radon?

Accepted Answer

A) unreactive 
B) tasteless 
C) odorless 
D) nonradioactive 
A) unreactive 
B) tasteless 
C) odorless 
D) nonradioactive

Question 6

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 7

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

Accepted Answer

A) True 
 B)False

Question 8

The layer of the atmosphere that is closest to the surface of the earth is the

Accepted Answer

A) mesosphere. 
B) stratosphere. 
C) thermosphere. 
D) troposphere. 
A) mesosphere. 
B) stratosphere. 
C) thermosphere. 
D) troposphere.

Question 9

Even if all CFC production could be stopped today,the ozone depletion problem in the stratosphere would continue for many years because

Accepted Answer

A) some nations would not follow the ban. 
B) CFCs are produced naturally in the troposphere. 
C) CFCs are widespread and very stable in the troposphere. 
D) ozone is naturally depleted by sunlight. 
A) some nations would not follow the ban. 
B) CFCs are produced naturally in the troposphere. 
C) CFCs are widespread and very stable in the troposphere. 
D) ozone is naturally depleted by sunlight.

Question 10

In the removal of pollution,the most expensive fraction of pollution to remove is the

Accepted Answer

A) first fraction. 
B) middle fractions. 
C) last fraction. 
D) The cost is constant across all fractions removed. 
A) first fraction. 
B) middle fractions. 
C) last fraction. 
D) The cost is constant across all fractions removed.

Question 11

The major source of all air pollutants in the United States is

Accepted Answer

A) industrial emissions. 
B) residential emissions. 
C) motor vehicle emissions. 
D) natural sources. 
A) industrial emissions. 
B) residential emissions. 
C) motor vehicle emissions. 
D) natural sources.

Question 12

Nitrogen is converted to nitrates by which of the following reactions?

Accepted Answer

A) N₂ + O₂ + energy(lightning)→ 2 NO 
B) 2 NO + O₂ → 2 NO₂ 
C) 3 NO₂ + H₂O → 2 HNO₃ + NO 
D) All of these reactions are involved in converting nitrogen to nitrates. 
A) N₂ + O₂ + energy(lightning)→ 2 NO 
B) 2 NO + O₂ → 2 NO₂ 
C) 3 NO₂ + H₂O → 2 HNO₃ + NO 
D) All of these reactions are involved in converting nitrogen to nitrates.

Question 13

Which component of the atmosphere is predicted to rise in the foreseeable future?

Accepted Answer

A) argon 
B) carbon dioxide 
C) fluorine 
D) carbon monoxide 
A) argon 
B) carbon dioxide 
C) fluorine 
D) carbon monoxide

Question 14

In the troposphere,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 15

Which of the following statements is true of oxygen and nitrogen at normal temperatures?

Accepted Answer

A) Both nitrogen and oxygen are highly reactive. 
B) Nitrogen is highly reactive, but oxygen is not. 
C) Oxygen is highly reactive, but nitrogen is not. 
D) Neither nitrogen nor oxygen is highly reactive. 
A) Both nitrogen and oxygen are highly reactive. 
B) Nitrogen is highly reactive, but oxygen is not. 
C) Oxygen is highly reactive, but nitrogen is not. 
D) Neither nitrogen nor oxygen is highly reactive.

Question 16

All of the following statements about carbon monoxide (CO)pollution in the United States are true EXCEPT

Accepted Answer

A) carbon monoxide makes up over 60% (by mass)of all air pollutants emitted into the atmosphere. 
B) the concentration of carbon monoxide is higher in urban areas than in rural areas. 
C) people exposed to carbon monoxide have a higher risk of heart attacks. 
D) the major source of carbon monoxide emissions is industrial sources, such as metal processing. 
A) carbon monoxide makes up over 60% (by mass)of all air pollutants emitted into the atmosphere. 
B) the concentration of carbon monoxide is higher in urban areas than in rural areas. 
C) people exposed to carbon monoxide have a higher risk of heart attacks. 
D) the major source of carbon monoxide emissions is industrial sources, such as metal processing.

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Volcanoes release large amounts of the pollutant ________.

Accepted Answer

A) Ar 
B) SiO₂ 
C) SO₂ 
D) O₃ 
A) Ar 
B) SiO₂ 
C) SO₂ 
D) O₃

Question 19

Ozone (O₃)and oxygen (O₂)are

Accepted Answer

A) allotropes. 
B) similar in reactivity. 
C) isomers. 
D) liquids at room temperature. 
A) allotropes. 
B) similar in reactivity. 
C) isomers. 
D) liquids at room temperature.

Question 20

Running an engine with a richer (more fuel,less air)combustion mixture lowers nitrogen oxide emissions from automobiles.The problem is that

Accepted Answer

A) hydrocarbon emission increases. 
B) carbon monoxide emission increases. 
C) fuel efficiency decreases. 
D) all of the above occur. 
A) hydrocarbon emission increases. 
B) carbon monoxide emission increases. 
C) fuel efficiency decreases. 
D) all of the above occur.

Exam 13: Air

The industrial fixation of nitrogen to produce nitrogen fertilizers has drastically increased food supply primarily because

What crucial role does sunlight play in photochemical smog?

Carbon monoxide blocks the ability of ________ to bind and transport ________.

Pollution levels are not affected by temperature inversions.

Which one of the following is NOT a property of radon?

The most abundant component of dry air is

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

The layer of the atmosphere that is closest to the surface of the earth is the

Even if all CFC production could be stopped today,the ozone depletion problem in the stratosphere would continue for many years because

In the removal of pollution,the most expensive fraction of pollution to remove is the

The major source of all air pollutants in the United States is

Nitrogen is converted to nitrates by which of the following reactions?

Which component of the atmosphere is predicted to rise in the foreseeable future?

In the troposphere,the reactivity of CFCs is

Which of the following statements is true of oxygen and nitrogen at normal temperatures?

All of the following statements about carbon monoxide (CO)pollution in the United States are true EXCEPT

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

Volcanoes release large amounts of the pollutant ________.

Ozone (O₃)and oxygen (O₂)are

Running an engine with a richer (more fuel,less air)combustion mixture lowers nitrogen oxide emissions from automobiles.The problem is that

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