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Which consequence results when industrial fertilizer runoff overwhelms riparian zones?

A)Nitrogen saturation inhibits oxygen dispersal
B)Reduced phosphorus limits protein synthesis
C)Potassium deficiency hinders cellular osmoregulation
D)Iron overload decreases enzyme function

💡 Explanation

An overloaded riparian environment causes eutrophication; bacterial nitrogen fixation increases, leading to nitrate accumulation. This process causes hypoxia because the nitrogen saturation inhibits available dissolved oxygen, thereby causing fish die-offs, rather than other nutrient-limited effects.

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