Unit Review

Question 1 of 15

This graph shows that ____________.

A. The percentage of children with asthma increases as particulate matter levels increase

B. An inverse relationship exists between asthmatic children and particulate matter levels

C. The percentage of children with no asthma symptoms increases as particulate matter levels increase

D. All of the above

Question 2 of 15

Smog is formed through a photochemical reaction. What is the energy source for this reaction?

A. Natural gas

B. Lightning

C. Fossil fuels

D. Sunlight

Question 3 of 15

How many metropolitan areas in Texas do not meet federal air-pollution standards?

A. 2

B. 5

C. 8

D. 16

Question 4 of 15

"Non-attainment" areas that do not have federally approved plans to meet air-pollution standards may ___.

A. Be forced to retire vehicles that do not pass tailpipe emissions tests

B. Be forced to use cleaner fuels, even if they cost more per gallon

C. Lose federal funds to build and maintain highways

D. All of the above

Question 5 of 15

Due to smoke in the air, a monitoring station in Mission, Texas, reported an unhealthful level of particulate matter for five hours on May 19, 2003. Based on the table below, what is the most likely reason that ended this event?

A. The wind speed increased

B. The temperature decreased

C. The wind direction changed

D. All of the above

Question 6 of 15

The food coloring used in this demonstration was a 10 percent solution. What dilution occurred in well #2?

A. 1/2

B. 1/10

C. 1/100

D. 1 ppm

Question 7 of 15

If an air-monitoring station detected 50 molecules of carbon monoxide in an air sample containing 1 million molecules, the carbon monoxide level would be reported as ___.

A. 500,000 parts per million

B. 0.00005 parts per million

C. 20,000 parts per million

D. 50 parts per million

Question 8 of 15

If an air-monitoring station detected 0.25 mg of particulates in 1 Kg of air, the particulate concentration would be reported as __________________.

A. 4 ppm by weight

B. 4 ppm by volume

C. 0.25 ppm by weight

D. 25 ppm by weight

Question 9 of 15

The yellowish-brown appearance of smog is caused by __________________.

A. Airborne particulate matter

B. Oxides of nitrogen

C. The amount of cloud coverage

D. Sunlight

Question 10 of 15

Under federal law, if an area has ozone concentrations over time of ___ parts per million or higher, the area may be ranked in one of six "ozone nonattainment" categories.

A. 0.075

B. 0.08

C. 0.03

D. None of the above; ozone in any amount is unhealthful

Question 11 of 15

The biggest source of urban air pollution in Texas as a whole is __________________.

A. Area sources, such as naturally occurring VOCs

B. Industrial sources, such as factories and power plants

C. Mobile sources, such as cars, trucks and buses

D. Residential and commercial buildings

Question 12 of 15

The Clean Air Act amendments of 1990 established a system of ____ for classifying ozone pollution levels in U.S. metropolitan areas.

A. National Ambient Air Quality Standards

B. Nonattainment categories

C. Extreme and Severe 17 categories

D. NOx categories

Question 13 of 15

Nozzles like this one __________________.

A. Must be installed on all Texas gasoline dispensers

B. Are designed to reduce the release of gasoline vapors during refueling

C. Are designed to increase the flow of gasoline during refueling

D. All of the above

Question 14 of 15

Air pollution has been a long-standing problem at Big Bend National Park despite the absence of industry, sparse population and few vehicles. What is the primary source of air pollution at Big Bend?

A. Cactus and other native plants give off a significant amount of volatile organic compounds.

B. Local area pollutants from natural sources, such as dust and pollen.

C. Winds that bring in pollutants such as sulfur dioxide from areas outside the park.

D. All of the above

Question 15 of 15

About ___ percent of all Texans live in areas whose air is polluted enough to put them at risk for developing serious health disorders.

A. 22

B. 70

C. 38

D. 30

Unit Review

Question 1 of 15

This graph shows that ____________.

Question 2 of 15

Smog is formed through a photochemical reaction. What is the energy source for this reaction?

Question 3 of 15

How many metropolitan areas in Texas do not meet federal air-pollution standards?

Question 4 of 15

"Non-attainment" areas that do not have federally approved plans to meet air-pollution standards may ___.

Question 5 of 15

Due to smoke in the air, a monitoring station in Mission, Texas, reported an unhealthful level of particulate matter for five hours on May 19, 2003. Based on the table below, what is the most likely reason that ended this event?

Question 6 of 15

The food coloring used in this demonstration was a 10 percent solution. What dilution occurred in well #2?

Question 7 of 15

If an air-monitoring station detected 50 molecules of carbon monoxide in an air sample containing 1 million molecules, the carbon monoxide level would be reported as ___.

Question 8 of 15

If an air-monitoring station detected 0.25 mg of particulates in 1 Kg of air, the particulate concentration would be reported as __________________.

Question 9 of 15

The yellowish-brown appearance of smog is caused by __________________.

Question 10 of 15

Under federal law, if an area has ozone concentrations over time of ___ parts per million or higher, the area may be ranked in one of six "ozone nonattainment" categories.

Question 11 of 15

The biggest source of urban air pollution in Texas as a whole is __________________.

Question 12 of 15

The Clean Air Act amendments of 1990 established a system of ____ for classifying ozone pollution levels in U.S. metropolitan areas.

Question 13 of 15

Nozzles like this one __________________.

Question 14 of 15

Air pollution has been a long-standing problem at Big Bend National Park despite the absence of industry, sparse population and few vehicles. What is the primary source of air pollution at Big Bend?

Question 15 of 15

About ___ percent of all Texans live in areas whose air is polluted enough to put them at risk for developing serious health disorders.

Your Review Results