According to the passage, human-generated air pollution in localized regions _____. A. can be dwarfed by nature's output of pollutants B. can overwhelm the natural system that removes poll
According to the passage, human-generated air pollution in localized regions _____.
A. can be dwarfed by nature's output of pollutants
B. can overwhelm the natural system that removes pollutants
C. will damage areas outside of the localized regions
D. will react harmfully with natural pollutants