Multiple Choice
The Clean Air Act of 1970 forced utilities to:
A) install scrubbers on power plants built before 1970 or switch to low-sulfur coal.
B) install scrubbers on power plants built after 1970 or switch to low-sulfur coal.
C) relocate large numbers of power plants to Mexico.
D) immediately replace older,dirtier power plants with new plants equipped with scrubbers.
Correct Answer:

Verified
Correct Answer:
Verified
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