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10 Cards in this Set
- Front
- Back
Most water stored in aquifers eventually flows back into
rivers and lakes. sewers. wells. reservoirs. |
a
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The 1974 U.S. law that established safety standards for drinking water was the
Safe Groundwater Act. Safe Drinking Water Act. Pure Food and Drug Act revisions. Environmental Protection Act. |
b
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The upper layer of the Earth's atmosphere is called the
stratosphere. biosphere. troposphere. ozone layer. |
a
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Which 1990 U.S. law established national emission standards for more than 100 different air pollutants?
Pollution Act of 1990 Emissions Act of 1990 Smog Act of 1990 Clean Air Act of 1990 |
d
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What flame retardant chemical used in plastic and foam products accumulates in human tissue and may cause chromosome abnormalities?
nitrogen oxide formaldehyde asbestos polybrominated diphenyl ethers |
d
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The garbage collected by municipalities from businesses and homes in the United States accounts for about ____ percent of the solid waste created in this country.
5 20 1 10 |
c
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Overgrazing and over-cropping activities that destroy the fertility of land result in
desertification. deforestation. second-growth conversion. old-growth conversion. |
a
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Forests are considered renewable resources regardless of how quickly they are cleared.
True False |
false
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Although the United States contains 4.5 percent of the world's population, it uses ___ percent of the world's commercial energy.
20 50 10 24 |
d
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The maximum population level that supports an optimum standard of living is called global carrying capacity.
True False |
false
|