Question 1

Which of the following air pollutants is emitted mainly by the automobile?

Accepted Answer

A)   particulates
B)   carbon monoxide
C)   sulfur dioxides
D)   hydrocarbons
E)   nitrogen oxides B

Question 2

Ozone production via automobile emissions ________.

Accepted Answer

A)   is usually associated with photochemical smog
B)   can help restore the ozone being depleted in the outer atmosphere
C)   is eliminated by appropriate use of catalytic converters
D)   will provide overall worldwide reduction in skin cancer A

Question 3

Your largest personal contribution to global warming in a year comes from ________.

Accepted Answer

A)   use of freon propellants
B)   use of air conditioners in your home
C)   driving your car
D)   cutting down trees
E)   burning natural gas for home heating. C

Question 4

CFC's in the stratosphere ________.

Accepted Answer

A)   provide protection from incoming solar radiation
B)   dissipate within days
C)   combine with NOX to produce smog
D)   adsorb ultraviolet light from the sun
E)   contribute to ozone destruction

Question 5

One of the major economic problems in less developed countries is ________.

Accepted Answer

A)   deforestation
B)   neglected use of solar energy
C)   dependence upon imported oil
D)   increased emission of greenhouse gases.

Question 6

If the volume of an object were to be halved with the same mass, its density would

Accepted Answer

A)   halve
B)   double
C)   stay the same

Question 7

A balloon is buoyed up with a force equal to the

Accepted Answer

A)   density of the surrounding air
B)   atmospheric pressure
C)   weight of the balloon and its contents
D)   weight of the air it displaces

Question 8

One of the changes experienced by a body of water when waste heat is added from a power plant is ________.

Accepted Answer

A)   an increase in water's capacity to hold oxygen
B)   an increased spawning success for fish
C)   an increased biological growing season
D)   decreased eutrophication

Question 9

Increases in the temperature of the earth due to the greenhouse effect over the last 50 years is least due to ________.

Accepted Answer

A)   burning of oil by industry and utilities
B)   flatulence by cows
C)   addition of hot water to lakes by utilities
D)   clearing land for farming
E)   use of freons

Question 10

The emissions of particulates due to the burning of coal can be reduced by the use of ________.

Accepted Answer

A)   electrostatic precipitators
B)   scrubbers
C)   coal from strip mines of the Western US
D)   limestone
E)   catalytic converters

Question 11

Which of the following air pollutants is emitted in about equal amounts by stationary and mobile sources?

Accepted Answer

A)   particulates
B)   carbon monoxide
C)   sulfur dioxides
D)   hydrocarbons
E)   nitrogen oxides

Exam 5: Air Pollution, Global Warming, and Fossil Fuels