Which of the following statements is not true?

A. Scrubbers can remove sulfur gases from coal exhaust, but they consume considerable energy in so doing.
B. Much of the low-sulfur coal in the United States is also lower-grade coal.
C. Sulfur associated with coal can cause acid runoff from strip-mine spoils.
D. There is sulfur in coal but not in oil or natural gas.


Answer: D

Environmental & Atmospheric Sciences

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