Air Review

What pollutant forms when automobile emissions react with oxygen gas and ultraviolet rays?

• ozone

• carbon dioxide

• radon

• sulfur dioxide

All of the following are primary air pollutants except

• carbon monoxide

• nitric acid

• sulfur oxides

• VOC's

Two-thirds of the sulfur dioxide that pollutes the air is produced by

• automobile exhaust

• industrial boilers

• electric power plants

• catalytic converters

Which of the following is often used to remove poisonous gases from industrial emissions before they are released into the atmosphere?

• catalytic converters

• scrubbers

• electrostatic precipitators

• crushed limestone

Which type of building would most likely have poor indoor air quality?

• one in a cool climate with a good ventilation system

• one in an urban area where windows are often open

• one that is tightly sealed and air-conditioned

• one that has not been repainted or recarpeted in several years

Schools in the United States have spent over $40 billion to remove

• non-water-based paint

• carbon dioxide

• volatile organic compounds

• asbestos

Which of the following pH measurements of rainwater would indicate acid precipitation?

• 6.0

• 4.1

• 7.3

• 9.6

Which of the following contributes most to acid precipitation?

• burning fossil fuels

• ethanol

• radon and ozone

• all ofthe above

As a lake becomes more acidic, fish are harmed not only by the acidity but also by substances that leach out of the soil into the water. Which of these toxic substances is leached when conditions are acidic?

• copper

• iron

• calcium

• aluminum

Most of the pollution that causes acid precipitation to fall in southeastern Canada is released from

• mexico

• central canada

• midwestern and eastern US

• southern US