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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Alamojay Alamojay
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9 years ago
The 1970 Clean Air Act and subsequent environmental regulations have resulted in
A) reductions in lead by about 89%.
B) reductions in carbon monoxide by about 10%.
C) surprising increases in sulfur dioxide levels by about 5%.
D) surprising increases in radon levels by about 20%.
Textbook 
Environmental Science: Toward A Sustainable Future

Environmental Science: Toward A Sustainable Future


Edition: 12th
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Super Cuban Dude
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JesuisMelJesuisMel
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9 years ago
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brneydgirl29,  peterb

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Alamojay Author
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9 years ago
Thank you, thank you, thank you!
TheMoffattMan
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Yesterday
Thanks
terriroberts96
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2 hours ago
This helped my grade so much Perfect
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