BIOL 120, Juliet Knowles Human and Environment CHAPTER 18—AIR POLLUTION
Acidic rain, snow, fog, and cloud vapor typically has a pH of
5.6
According to a 2012 EPA report, between 1980 and 2010, the combined emissions of six major air pollutants decreased by how much?
63%
Chlorofluorocarbon (CFCs) molecules can stay in the stratosphere for ____.
65-385 years
Approximately how much of the air we breathe is composed of nitrogen and oxygen?
99%
Which statement about acid deposition is false?
Low pH increases plant nutrients in forest soils.
Which statement about ozone thinning is true?
Ozone levels fluctuate seasonally, with the lowest levels occurring in September and October.
Radioactive ____ is a product of uranium decay.
Radon
In the United States, the highest levels of air pollution from fine particles are found in ____.
West Virginia
The grasshopper effect is a result of ____.
air pollutants being transferred from warmer areas to polar areas by evaporation and wind
The UV filtering effect of the ozone layer is beneficial because it ____.
allows humans and other forms of life to exist on land
It would be ineffective to prevent lead poisoning by ____.
banning the use of lead pencils in schools
Burning coal will produce pollutants such as ____.
carbon monoxide, sulfur dioxide and soot
Outdoor air pollution is reduced when ____.
chemical reactions form acid precipitation which falls out of the atmosphere
About 90% of radon related lung cancers in the United States occur among ____.
current or former smokers
Air pollution in the urban areas of many less-developed countries is ____.
getting worse
Human inputs of outdoor air pollutants occur mostly ____.
in urban areas
The Asian Brown Cloud is a(n) ____.
large thick cloud of dust, smoke, and toxic metals in the troposphere
Sick Building Syndrome is not correlated with ____.
lung cancer
Major air pollutants include ____.
nitrogen oxides, carbon monoxide and dioxide, sulfur compounds, VOCs, and suspended particulate matter
People are exposed to lead via ____.
peeling paint and dust in older homes
Photochemical smog is formed when primary pollutants interact with ____.
sunlight
The atmosphere is divided into spherical layers based upon the ____.
temperature changes from variations in absorption of solar energy
The WHO and the World Bank call indoor air pollution ____.
the world's most serious air pollution problem
Most of earth's climate occurs in the ____.
troposphere
Exposure to indoor formaldehyde pollution is least likely to cause ____.
ulcers
