Why was the Clean Air Act amended in 1990?
A. to reduce sulfur dioxide emissions from electric power plants to half of 1980 levels
B. so flat fees for excessive pollution could be determined by the federal government
C. to reduce sulfur dioxide emission through command-and-control regulations
D. to reduce sulfur dioxide emissions from electric power plants to half of 1970 levels
A. to reduce sulfur dioxide emissions from electric power plants to half of 1980 levels
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What are some major plantation crops?
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Which of the following is true about rocks and minerals?
A. A mineral is composed of chemical elements. B. A rock can contain more than one mineral. C. A single rock can include more than one mineral. D. All of these choices are correct.
The forecasts for the D-Day invasion
A) were largely incorrect. B) predicted heavy rains and heavy seas. C) helped end World War II sooner. D) explain why the Germans were so well prepared at the Normandy beaches. E) were made by General Dwight Eisenhower.