Question 1

Which of the following statements is not true?

Accepted Answer

A)   By the time studies of rain acidity were begun, all air was polluted to some extent.
B)   Rainfall would not be acidic if burning of sulfur-rich coal were stopped.
C)   Rainfall is often more acidic downwind of coal-fired power plants.
D)   The problems caused by acid rain vary in severity with local soil and bedrock geology. B

Question 2

The amount of precipitation can be markedly increased by

Accepted Answer

A)   Ozone.
B)   Particulate air pollutants.
C)   Lead pollution.
D)   Sulfur oxides.

Question 3

Particulate air pollutants

Accepted Answer

A)   Are chiefly produced by human activities, not natural processes.
B)   Typically have short residence times in the atmosphere.
C)   Are unsightly but not unhealthy.
D)   All of the choices are correct.

Question 4

The most important function of the ozone layer in the stratosphere is

Accepted Answer

A)   Conversion of oxygen to O3.
B)   Destruction of CFCs, that otherwise would accumulate in the atmosphere and cause increased incidence of lung cancer.
C)   Absorption of incoming UV radiation from the sun, that otherwise would increase the risk of skin cancer.
D)   Maintenance of the Earth's magnetic field.

Question 5

The ozone layer is found in the

Accepted Answer

A)   Thermosphere.
B)   Mesosphere.
C)   Stratosphere.
D)   Troposphere.

Question 6

Radon in homes comes,in part,from

Accepted Answer

A)   Fumes given off by insulation materials.
B)   Natural rocks and soils and buildings made from these materials.
C)   Leakage of exhaust gases from furnaces.
D)   All of the choices are correct.

Question 7

Significant components of indoor air pollution include all of the following except

Accepted Answer

A)   Radon.
B)   Volatile organic compounds.
C)   Carbon monoxide.
D)   Carbon dioxide.

Question 8

Both acidity and sulfate concentration in rain have been reduced downwind of Phase I targets of the U.S.Clean Air Act reauthorization of 1990.

Accepted Answer

A) True 
 B)False  False

Question 9

A negative correlation between ClO and ozone concentrations in the stratosphere supports the idea that chlorofluorocarbons play a role in ozone destruction.

Accepted Answer

A) True 
 B)False

Question 10

Photochemical smog consists principally of ozone.

Accepted Answer

A) True 
 B)False

Question 11

The Pollutant Standards Index is designed to provide a measure of air quality that is directly related to human health effects.

Accepted Answer

A) True 
 B)False

Question 12

In urban areas,this gas from internal-combustion engines may contribute to rainfall acidity.

Accepted Answer

A)   Sulfur gases
B)   Nitrogen oxides
C)   Radon
D)   Ozone

Question 13

The agreement known as the Montreal Protocol is intended to force countries that still put lead in gasoline to stop doing so by the year 2010.

Accepted Answer

A) True 
 B)False

Question 14

The short-wavelength UVC is the most hazardous UV,but is largely absorbed by atmospheric oxygen before it reaches earth's surface.

Accepted Answer

A) True 
 B)False

Question 15

Increases in ozone in the upper atmosphere may lead to increased occurrence of skin cancer.

Accepted Answer

A) True 
 B)False  False

Question 16

Significant sources for dust and other particulates in the atmosphere include all of the following except

Accepted Answer

A)   Combustion products of fuel, including soot, smoke and ash as well as vegetation burning, planned fires or wildfires.
B)   Dust devils.
C)   Glacial melt.
D)   Building demolition.

Question 17

Acid rain effects include all of the following except

Accepted Answer

A)   Corrosion of building stone and marble statues and headstones.
B)   A reduction in the rate of chemical weathering observed in igneous rocks.
C)   Defoliation of plants or reduction in viability of plants because of their lowered ability to extract necessary nutrients from soils.
D)   Fish kills or decimation of any aquatic organism's population because of inhibition of egg hatching in acidic waters.

Question 18

Water vapor can be the __________ most abundant gas component of the Earth's atmosphere,with concentrations of up to __________.

Accepted Answer

A)   Third; 3 percent
B)   Second; 70 percent
C)   Fifth; 1 percent
D)   Tenth; 2 percent

Question 19

Electrostatic scrubbers are very efficient at removing particulate pollutants and also operate quite cheaply,so they are now installed on all equipment that generates particulates.

Accepted Answer

A) True 
 B)False

Question 20

The atmospheric residence times of inert gases,such as helium and argon,

Accepted Answer

A)   Are quite short, as these gases are removed by precipitation.
B)   Are strongly controlled by human activities.
C)   Have virtually infinite residence times.
D)   Cannot be estimated because their natural cycles are complex.

Exam 18: Air Pollution

Which of the following statements is not true?

Correct AnswerverifiedB

The amount of precipitation can be markedly increased by

Correct AnswerverifiedShow Answer

Particulate air pollutants

Correct AnswerverifiedShow Answer

The most important function of the ozone layer in the stratosphere is

Correct AnswerverifiedShow Answer

The ozone layer is found in the

Correct AnswerverifiedShow Answer

Radon in homes comes,in part,from

Correct AnswerverifiedShow Answer

Significant components of indoor air pollution include all of the following except

Correct AnswerverifiedShow Answer

Both acidity and sulfate concentration in rain have been reduced downwind of Phase I targets of the U.S.Clean Air Act reauthorization of 1990.

Correct AnswerverifiedFalse

A negative correlation between ClO and ozone concentrations in the stratosphere supports the idea that chlorofluorocarbons play a role in ozone destruction.

Correct AnswerverifiedShow Answer

Photochemical smog consists principally of ozone.

Correct AnswerverifiedShow Answer

The Pollutant Standards Index is designed to provide a measure of air quality that is directly related to human health effects.

Correct AnswerverifiedShow Answer

In urban areas,this gas from internal-combustion engines may contribute to rainfall acidity.

Correct AnswerverifiedShow Answer

The agreement known as the Montreal Protocol is intended to force countries that still put lead in gasoline to stop doing so by the year 2010.

Correct AnswerverifiedShow Answer

The short-wavelength UVC is the most hazardous UV,but is largely absorbed by atmospheric oxygen before it reaches earth's surface.

Correct AnswerverifiedShow Answer

Increases in ozone in the upper atmosphere may lead to increased occurrence of skin cancer.

Correct AnswerverifiedFalse

Significant sources for dust and other particulates in the atmosphere include all of the following except

Correct AnswerverifiedShow Answer

Acid rain effects include all of the following except

Correct AnswerverifiedShow Answer

Water vapor can be the __________ most abundant gas component of the Earth's atmosphere,with concentrations of up to __________.

Correct AnswerverifiedShow Answer

Electrostatic scrubbers are very efficient at removing particulate pollutants and also operate quite cheaply,so they are now installed on all equipment that generates particulates.

Correct AnswerverifiedShow Answer

The atmospheric residence times of inert gases,such as helium and argon,

Correct AnswerverifiedShow Answer

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False

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False

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Water vapor can be the most abundant gas component of the Earth's atmosphere,with concentrations of up to .

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