ganand wrote:
The level of sulfur dioxide in the atmosphere is slightly higher than it was ten years ago. This increase is troubling because ten years ago the Interior Ministry imposed new, stricter regulations on emissions from coal-burning power plants. If these regulations had been followed, then the level of sulfur dioxide in the atmosphere would have decreased.
Which one of the following can be properly inferred from the statements above?
(A) If current regulations on emissions from coal-burning power
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