Biology · Biogeochemical Cycles
Generally, nitrogen is usable by plants only after it is fixed. Which of the following pathways contributes the maximum (about 90%) to global nitrogen fixation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1All pathways contribute equally
- 2Industrial fixation (Haber process)
- 3Biological fixation (microorganisms)✓
- 4Atmospheric fixation (lightning)
Correct answer
Biological fixation (microorganisms)
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