Question 1

Strong winds tend to____________________the concentration of pollutants by spreading them apart as they move downstream.​

Accepted Answer

The answer of Strong winds tend to____________________the concentration of pollutants...

Question 2

Explain what CFCs,HCFCs,and HFCs are,and how they influence ozone.

Accepted Answer

Chlorofluorocarbons (CFCs)posed a seriou

Question 3

In the 1970s,____________________were the most widely used propellants in spray cans,such as deodorants and hairsprays.

Accepted Answer

chlorofluorocarbons

Question 4

When the pollutant's value is the same as the primary ambient air quality standard,the pollutant is assigned an AQI number of ____.

Accepted Answer

A) 25 
B) 50 
C) ​75 
D) ​100 
E) ​250 
A) 25 
B) 50 
C) ​75 
D) ​100 
E) ​250

Question 5

A looping shape exhibited by a smokestack plume is indicative of ____ conditions.

Accepted Answer

A) inversion 
B) stable 
C) ​neutral 
D) ​unstable 
E) ​both inversion and stable 
A) inversion 
B) stable 
C) ​neutral 
D) ​unstable 
E) ​both inversion and stable

Question 6

Once released into the atmosphere,chlorofluorocarbons remain about ____.

Accepted Answer

A) 10-20 days 
B) 50-100 years 
C) ​1-2 years 
D) ​1-2 month 
E) ​1000 years 
A) 10-20 days 
B) 50-100 years 
C) ​1-2 years 
D) ​1-2 month 
E) ​1000 years

Question 7

The formation of ____ begins when ultraviolet radiation (at wavelengths of about 0.31 µm and below)dissociates some of the ozone into molecular oxygen and atomic oxygen.

Accepted Answer

A) water vapor 
B) the hydroxyl radical (OH) 
C) ​sulfur dioxide 
D) ​acid rain 
E) ​dry deposition 
A) water vapor 
B) the hydroxyl radical (OH) 
C) ​sulfur dioxide 
D) ​acid rain 
E) ​dry deposition

Question 8

Sulfur dioxide (SO₂)can enter the atmosphere naturally during volcanic eruptions and from ocean spray.​

Accepted Answer

A) True 
 B)False

Question 9

Although thousands of volatile organic compounds (VOCs)are known to exist,methane is the most abundant.​

Accepted Answer

A) True 
 B)False

Question 10

Many suspended particles are____________________,meaning that water vapor readily condenses onto them.

Accepted Answer

The answer of Many suspended particles are____________________,meaning that water vapor...

Question 11

Explain what is meant by the term "Waldsterben".​

Accepted Answer

In the late 20th century,many trees in G

Question 12

Which condition would act to prevent a buildup of pollutants near the surface?

Accepted Answer

A) light surface winds 
B) a strong subsidence inversion 
C) ​a large,slow-moving anticyclone 
D) ​a deep mixing layer and strong ventilation 
E) ​a shallow mixing layer 
A) light surface winds 
B) a strong subsidence inversion 
C) ​a large,slow-moving anticyclone 
D) ​a deep mixing layer and strong ventilation 
E) ​a shallow mixing layer

Question 13

Pollutants that enter the atmosphere directly,for example from smokestacks and tail pipes,are called secondary air pollutants.​

Accepted Answer

A) True 
 B)False

Question 14

The original Clean Air Act in the United States was enacted in ____.​

Accepted Answer

A) 1946 
B) 1955 
C) ​1970 
D) ​1977 
E) ​1990 
A) 1946 
B) 1955 
C) ​1970 
D) ​1977 
E) ​1990

Question 15

An air quality index value of 35 on a particular day indicates ____ conditions.

Accepted Answer

A) good 
B) unhealthy 
C) ​extremely hazardous 
D) ​moderately hazardous 
E) ​potentially hazardous 
A) good 
B) unhealthy 
C) ​extremely hazardous 
D) ​moderately hazardous 
E) ​potentially hazardous

Question 16

____________________air pollutants enter the atmosphere directly-from smokestacks and tail pipes,for example.

Accepted Answer

The answer of ____________________air pollutants enter the atmosphere directly-from smokestacks...

Question 17

In sunny cities such as Los Angeles,the ever-rising automobile population and the large petroleum processing plants generate ____________________smog,which irritates the eyes.

Accepted Answer

The answer of In sunny cities such as Los Angeles,the...

Question 18

The urban heat island is ____.

Accepted Answer

A) warmer air temperatures in urban areas compared to surrounding rural areas 
B) a concentration of energy use in an urban area 
C) ​locating factories in a single location downwind from cities 
D) ​use of conservation techniques to reduce energy use in cities 
E) ​only created in cities where topography is a contributing factor 
A) warmer air temperatures in urban areas compared to surrounding rural areas 
B) a concentration of energy use in an urban area 
C) ​locating factories in a single location downwind from cities 
D) ​use of conservation techniques to reduce energy use in cities 
E) ​only created in cities where topography is a contributing factor

Question 19

In cities,during warm daylight hours,less evaporative cooling in cities allows surface temperatures to rise higher than in rural areas,which results in a(n)____________________.​

Accepted Answer

urban heat

Question 20

The mixing layer is a ____.

Accepted Answer

A) very stable layer that extends from the surface up to the base of an inversion 
B) relatively unstable layer that extends from the surface up to the base of an inversion 
C) ​very stable layer found upward from an inversion 
D) ​very unstable layer that extends upward from an inversion 
E) ​relatively stable layer that extends from the surface to the base of an inversion. 
A) very stable layer that extends from the surface up to the base of an inversion 
B) relatively unstable layer that extends from the surface up to the base of an inversion 
C) ​very stable layer found upward from an inversion 
D) ​very unstable layer that extends upward from an inversion 
E) ​relatively stable layer that extends from the surface to the base of an inversion.

Strong winds tend to____________________the concentration of pollutants by spreading them apart as they move downstream.

Explain what CFCs,HCFCs,and HFCs are,and how they influence ozone.

In the 1970s,____________________were the most widely used propellants in spray cans,such as deodorants and hairsprays.

When the pollutant's value is the same as the primary ambient air quality standard,the pollutant is assigned an AQI number of ____.

A looping shape exhibited by a smokestack plume is indicative of ____ conditions.

Once released into the atmosphere,chlorofluorocarbons remain about ____.

The formation of ____ begins when ultraviolet radiation (at wavelengths of about 0.31 µm and below)dissociates some of the ozone into molecular oxygen and atomic oxygen.

Sulfur dioxide (SO₂)can enter the atmosphere naturally during volcanic eruptions and from ocean spray.

Although thousands of volatile organic compounds (VOCs)are known to exist,methane is the most abundant.

Many suspended particles are____________________,meaning that water vapor readily condenses onto them.

Explain what is meant by the term "Waldsterben".

Which condition would act to prevent a buildup of pollutants near the surface?

Pollutants that enter the atmosphere directly,for example from smokestacks and tail pipes,are called secondary air pollutants.

The original Clean Air Act in the United States was enacted in ____.

An air quality index value of 35 on a particular day indicates ____ conditions.

____________________air pollutants enter the atmosphere directly-from smokestacks and tail pipes,for example.

In sunny cities such as Los Angeles,the ever-rising automobile population and the large petroleum processing plants generate ____________________smog,which irritates the eyes.

The urban heat island is ____.

In cities,during warm daylight hours,less evaporative cooling in cities allows surface temperatures to rise higher than in rural areas,which results in a(n)____________________.

The mixing layer is a ____.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation Dew Fog and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind Small Scale and Local Systems

Wind Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Light Color and Atmospheric Optics

Filters

Exam 19: Air Pollution

Strong winds tend to____________________the concentration of pollutants by spreading them apart as they move downstream.​

Explain what CFCs,HCFCs,and HFCs are,and how they influence ozone.

In the 1970s,____________________were the most widely used propellants in spray cans,such as deodorants and hairsprays.

When the pollutant's value is the same as the primary ambient air quality standard,the pollutant is assigned an AQI number of ____.

A looping shape exhibited by a smokestack plume is indicative of ____ conditions.

Once released into the atmosphere,chlorofluorocarbons remain about ____.

The formation of ____ begins when ultraviolet radiation (at wavelengths of about 0.31 µm and below)dissociates some of the ozone into molecular oxygen and atomic oxygen.

Sulfur dioxide (SO₂)can enter the atmosphere naturally during volcanic eruptions and from ocean spray.​

Although thousands of volatile organic compounds (VOCs)are known to exist,methane is the most abundant.​

Many suspended particles are____________________,meaning that water vapor readily condenses onto them.

Explain what is meant by the term "Waldsterben".​

Which condition would act to prevent a buildup of pollutants near the surface?

Pollutants that enter the atmosphere directly,for example from smokestacks and tail pipes,are called secondary air pollutants.​

The original Clean Air Act in the United States was enacted in ____.​

An air quality index value of 35 on a particular day indicates ____ conditions.

____________________air pollutants enter the atmosphere directly-from smokestacks and tail pipes,for example.

In sunny cities such as Los Angeles,the ever-rising automobile population and the large petroleum processing plants generate ____________________smog,which irritates the eyes.

The urban heat island is ____.

In cities,during warm daylight hours,less evaporative cooling in cities allows surface temperatures to rise higher than in rural areas,which results in a(n)____________________.​

The mixing layer is a ____.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation Dew Fog and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind Small Scale and Local Systems

Wind Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Light Color and Atmospheric Optics

Filters

Strong winds tend to____________________the concentration of pollutants by spreading them apart as they move downstream.

Sulfur dioxide (SO₂)can enter the atmosphere naturally during volcanic eruptions and from ocean spray.

Although thousands of volatile organic compounds (VOCs)are known to exist,methane is the most abundant.

Explain what is meant by the term "Waldsterben".

Pollutants that enter the atmosphere directly,for example from smokestacks and tail pipes,are called secondary air pollutants.

The original Clean Air Act in the United States was enacted in ____.

In cities,during warm daylight hours,less evaporative cooling in cities allows surface temperatures to rise higher than in rural areas,which results in a(n)____________________.