Glencoe Earth Science

Chapter 21: Our Impact on Water and Air

Standardized Test Practice

1.
Which term describes pollution from industrial outfalls or ditches?
A)nonpoint source
B)pesticides
C)fertilizers
D)point source
2.
What is the largest source of water quality issues in the United States?
A)point source pollution
B)non-point source pollution
C)pesticides
D)fertilizers
3.
What ingredient in fertilizers can cause an overgrowth of algae?
A)carbon
B)hydrogen
C)oxygen
D)nitrogen
4.
According to the bar graph, what is the percentage of polluted salt marshes? <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/165465/520_622_q4_q5.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (9.0K)</a>
A)40%
B)17%
C)8%
D)50%
5.
In the graph above, what percentage of lakes has a pollution rating of good? <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/165465/520_622_q4_q5.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (9.0K)</a>
A)8%
B)37%
C)60%
D)47%
6.
Conserving water may help reduce water pollution by
A)reducing water in the atmosphere.
B)increasing pH in the soil.
C)reducing the need for water treatment.
D)reducing acid rain.
7.
What affect does acid rain have on the pH of natural lakes and streams?
A)increase in the pH
B)stabilized the pH
C)decrease in the pH
D)no change in the pH
8.
As seen in the diagram below, how could the addition of fertilizers into the water supply lead to a fish kill? <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078617006/165465/520_601_q8.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (63.0K)</a>
A)Fertilizers increase the algae content, providing too much food for the fish.
B)Fertilizers kill off algae that are food for the fish.
C)Fish become poisoned by the excess oxygen in the wetlands.
D)Fish are deprived of oxygen that has been used up by the increase in algae.
9.
Which of the following natural conditions can affect the atmosphere's ability to disperse pollutants?
A)rock formations
B)ocean currents
C)strong winds
D)temperature inversions
10.
What is a colorless, odorless gas found in car exhaust that contributes to air pollution?
A)sulfur dioxide
B)ozone
C)carbon monoxide
D)smog
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