Ozone Depletion Experimental Design
To investigate the effect of chlorofluorocarbons (CFCs) on ozone depletion, a researcher released CFCs into a controlled chamber simulating stratospheric conditions with UV light, oxygen, and nitrogen. Despite measuring ozone concentration over time, no significant depletion was observed. Which of the following best explains a conceptual flaw in the experimental design?
Failing to include other greenhouse gases in the chamber that could have interacted with CFCs and affected the results.
Not using a sufficient amount of UV light to accurately simulate the intensity of solar radiation in the stratosphere.
Not accounting for the chemical stability and time required for CFCs to reach the stratosphere and initiate ozone depletion.
Using too high a concentration of oxygen in the chamber, which could have offset the effects of CFCs on ozone.
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