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← Nature & AnimalsWhich outcome occurs when root nodules experience excessive soil acidity?
A)Reduced nitrogen fixation efficiency✓
B)Increased phosphate uptake rate
C)Enhanced nodule carbon sequestration
D)Accelerated decomposition of organic matter
💡 Explanation
Excessive acidity inhibits nitrogen fixation because low pH denatures nitrogenase, an enzyme critical for the nitrogen fixation process. Therefore, fixation becomes less efficient, rather than increasing phosphate uptake which involves different mechanisms.
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