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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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F.A.S.T F.A.S.T
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7 years ago
The strictest set of laws regulating air pollution were in place following federal action in this year:
A) 1963.
B) 1970.
C) 1977.
D) 1990.
Textbook 
Understanding Weather and Climate

Understanding Weather and Climate


Edition: 5th
Authors:
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spinachspinach
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7 years ago
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F.A.S.T Author
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#2
7 years ago
Whatt!!! This is awesome
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#3
7 years ago
Such an amazing community, glad to help
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