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Inversions represent a hazardous meteorological condition with respect to air pollution because they always bring:


A) turbulent motion.
B) strong winds.
C) reduced oxygen content.
D) a near total lack of mixing.
E) cold temperatures.

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Air pollution problems are most acute when winds are strong and gusty.

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This is a colorless,corrosive gas that originates from burning coal and oil: ________.

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Clear sunny days are part of the cause of the air pollution known as smog.

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In the 1970s,the federal Clean Air Act made major strides in reducing air pollution and created this.


A) the Sierra Club
B) the Energy Protection Agency
C) the Environmental Protection Agency
D) the Air Pollution Protection Agency

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Which one of the source categories listed below is responsible for the most pollution?


A) solid waste disposal
B) transportation
C) industrial processes
D) electric utilities

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________ are usually the most obvious form of air pollution because they reduce visibility and leave deposits of dirt on the surfaces with which they come in contact.


A) Volatile organics
B) Particulates
C) Sulfur oxides
D) Nitrogen oxides

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The capacity of the atmosphere to disperse and dilute pollutant materials is


A) highly variable and based on the weather.
B) predictable and consistent from day to day.
C) the same in all locations.
D) large and unchanging.

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A "London-type" smog is characterized by:


A) the combination of smoke and fog on very humid days.
B) the photochemical production of pollutants.
C) high concentrations of fine particulate matter on sunny days.
D) low humidity and high levels of industrial pollution.

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Why do you think the winter season contributes to greater air pollution in northern U.S.cities?

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a)Cold surface temperatures an...

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________ determines the extent to which vertical motions will mix the pollution with cleaner air above surface layers.

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Atmospheri...

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Volatile organic compounds:


A) can occur naturally.
B) are created primarily by the burning of coal.
C) consist of carbon,nitrogen and oxygen.
D) pose the greatest danger of all the primary pollutants.

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A substance with a pH of 4 is more acidic than a substance with a pH of 3.

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Although ________ forms naturally in the stratosphere,when produced near the surface it is considered a pollutant with many negative effects.


A) smog
B) ozone
C) nitric acid
D) sulfur dioxide

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The Environmental Protection Agency was created in the mid-1980s.

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The largest single source of materials causing acid rain is residential heating furnaces.

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Building tall smokestacks may contribute to some air pollution problems.

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A number of lakes in North America no longer have fish in them.One reason for this is:


A) the hole in the ozone layer has allowed too much UV to penetrate the water.
B) carbon monoxide dissolves in the water and makes it toxic.
C) acid rain falling directly onto fish kills them instantly.
D) acid rain has made the water more acidic,causing it dissolve toxic aluminum from the soil.

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How much more acidic is a substance with a pH of 5 than a substance with a pH of 6?


A) 10 times
B) 30 times
C) 5 times
D) 2 times

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The standardized indicator used to report daily air quality to the public is called the:


A) Air Pollution Indicator.
B) Criteria Pollutant Summary.
C) Pollution Snapshot.
D) Air Quality Index.

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