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← Nature & AnimalsWhich outcome occurs when increased salinity inhibits microbial activity near mangrove roots?
A)Ammonia exposure risk increases rapidly
B)Reduced nitrogen fixation rates result✓
C)Enhanced cellulose digestion happens quickly
D)Increased phosphorus uptake accelerates growth
💡 Explanation
Salinity inhibiting microbial activity will cause reduced nitrogen fixation rates via osmotic stress affecting nitrogenase activity, because the microbes' metabolic functions are disrupted; therefore, less nitrogen becomes available to the plants, rather than increased uptake or unrelated processes dominating.
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