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Which of the following claims about ozone depletion, as discussed in the chapter, is INCORRECT?
AA reduction of about 5% in the ozone layer was detected from 1979 to 1990
BThe principal causes are high levels of chlorine and bromine compounds in the stratosphere
CThe phenomenon increased the global mean sea level by several inches during the past century
DSources include CFCs from refrigerants and halons from fire extinguishers
Answer & Solution
Correct answer: C. The phenomenon increased the global mean sea level by several inches during the past century
Rising sea level is attributed to global warming, not ozone depletion. Ozone depletion is caused by chlorine and bromine compounds (CFCs, halons), allowed more UV to reach Earth, and was detected at around 5% reduction between 1979 and 1990.
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