Most major laws in modern US environmental policy were enacted in the
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1960s & 1970s
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1980s & 1990s
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years between 2000-2005
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years between 2005-2010
A
Correct answer
Explanation
The 1960s and 1970s saw a surge in public awareness regarding environmental issues, leading to the creation of major US legislation like the Clean Air Act and the Clean Water Act. Later decades focused more on amendments or specific niche regulations rather than the foundational policy framework.