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← GeographyWhich effect increases as plastic debris accumulates in ocean gyres experiencing stratification?
A)Chemical breakdown via intensified photolysis✓
B)Increased rate of downward water mixing
C)Enhanced CO2 sequestration via algal blooms
D)Reduced bioaccumulation of toxins onto particles
💡 Explanation
When plastics accumulate in stratified gyres, increased UV exposure interacts with the plastic surfaces because less vertical mixing occurs, accelerating their breakdown via photolysis and releasing harmful chemicals. Chemical breakdown via photolysis results, rather than mixing, CO2 absorption or reduced bioaccumulation, which have opposing or unrelated factors.
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