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← ScienceWhich consequence results when atmospheric oxygen undergoes photochemical reactions?
A)Ozone layer's protective absorption increases✓
B)Nitrogen fixation rates rapidly decreases
C)Cloud formation globally decreases
D)Acid rain dramatically increases regionally
💡 Explanation
The ozone layer protects from harmful UV radiation. UV radiation causes oxygen molecules to split, enabling them to form ozone through the Chapman cycle mechanism. Therefore, the ozone layer increases UV absorption, rather than other atmospheric effects because the Chapman cycle dominates at these high altitudes.
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