Since the implementation of the Clean Air Act, the concentrations of all major air pollutants have decreased. Please select the best answer from the choices provided.
A. True
B. False

Question

GinnyAnswer · Answer

The Clean Air Act significantly reduced the concentrations of major air pollutants like sulfur dioxide, lead, and carbon monoxide since its implementation in 1970. Stricter regulations and cleaner technologies have led to these marked declines. Overall, the act has played a crucial role in enhancing air quality in the United States. ;

Answered by GinnyAnswer | 2025-07-08

Anonymous · Answer

The Clean Air Act, implemented in 1970, has significantly reduced the concentrations of major air pollutants in the U.S. The key pollutants like sulfur dioxide, lead, and carbon monoxide have seen substantial decreases due to stricter regulations and cleaner technologies. Thus, the answer is A. True. 
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Since the implementation of the Clean Air Act, the concentrations of all major air pollutants have decreased. Please select the best answer from the choices provided. A. True B. False

Answer (2)

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Since the implementation of the Clean Air Act, the concentrations of all major air pollutants have decreased. Please select the best answer from the choices provided.
A. True
B. False