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Study Guide Questions

1.     The outward appearance of lakes and streams has changed very little since when?
2.     When did scientists in America and in Europe begin to notice something peculiar about the rain?
3.     By ______________________, hundreds of lakes in Europe and North America had died.
4.     What is the cause of the deaths of so many of the world's lakes?
5.     Acid rain is caused by __________________________________.
6.     When pollution from automobiles, electrical power plants, or industrial facilities comes into contact with water, what is formed?
7.     What are the main pollutants that contribute to acid rain?
8.     The three pollutants named in #7 (above) react with water in the _____________________________.
9.     What are the main pollutants that contribute to acid rain?
10.     Acidity is measured on the _________________ scale, from _______________ to _______________.
11.     Neutral, on the pH scale, is _____________.
12.     On the pH scale, numbers from zero to six indicate ______________________, while numbers eight to fourteen indicate _____________________________ .
13.     What is the pH of normal rainfall?
14.     Rainfall in the eastern U.S. is _______________ to ______________ times more acidic than is normal
15.     Rain with the same acidity as vinegar has been recorded. True or false?
16.     Where did rain have the same acidity as lemon juice?
17.     What, other than human activity, contributes to the acidity of rain?
18.     One half of all SO2 pollution in the U.S. comes from ______________________________ generation.
19.     The burning of coal does not contribute to acid rain. True or false?
20.     What's the main source of nitrogen oxide pollution?
21.     Why were taller smoke stacks built after 1970?
22.     ________________________ percent of the sulfate deposited in New York and New Jersey originates hundreds of miles away, mostly in the _______________________________.
23.     What four states produce one-fourth of all the sulfur dioxide in the United States?
24.     Where do prevailing winds carry the pollution that originates in the states named in #23 (above)?
25.     Even the South Pole has received sulfate pollution because of Russian metal smelters. True or false?
26.     Smog from Los Angeles pollutes the Grand Canyon. True or false?
27.     The most commercially important copper ores are the ____________________________________.
28.     Where are some of the most acid-sensitive lakes found?
29.     The ability of a lake to absorb acid is called its "_________________________________________."
30.     High mountain lakes have a [high/ low] buffering capacity.
31.     Which lakes have a natural capacity to absorb and neutralize acid?
32.     Rocky Mountain lakes lie over _____________________________________.
33.     In what season do mountain lakes receive an intense infusion of acidity? Why?
34.     What expression describes the phenomenon referred to in #33 (above)?
35.     Fish populations are endangered in more than ______________________ of the Adirondack's lakes.
36.     Most fish cannot survive below what pH number?
37.     Water lilies that die because of acidity are often replaced by _______________________________.
38.     In Sweden, ____________________________ lakes have been acidified.
39.     By 1982, ___________________percent of Germany's forests had been damaged by acid rain.
40.     What percent of Germany's forests had been damaged by acid rain in 1987?
41.     What are the first signs that a forest is experiencing acid rain damage?
42.     Acid in the soil dissolves ____________________________ and leaches it into lakes and streams.
43.     Acid in the atmosphere can cause respiratory illness in human beings. True or false?
44.     Acid rain damage to structures in the Unites States exceeds ____________________ dollars annually.
45.     When did the U.S. Congress pass the "Clean Air Act"?
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.