Sulfates are responsible for 6080 percent of total light extinction in the East, based on data collected during the 1990's in eastern national parks such as Acadia, Everglades, Great Smoky Mountains, Shenandoah, and in Washington, DC.
Sulfates play no role in light extinction according to a 1990s test.
mnli hypothesis: Sulfates play no role in light extinction according to a 1990s test. premise: Sulfates are responsible for 6080 percent of total light extinction in the East, based on data collected during the 1990's in eastern national parks such as Acadia, Everglades, Great Smoky Mountains, Shenandoah, and in Washington, DC.