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  • ...in the sea. This N<sub>2</sub> fixation process (diazotrophy) is catalyzed by the enzyme nitrogenase. The amount of nutrient N that through this process ...cic acid, Si(OH)<sub>4</sub>, is the only Si compound available for uptake by marine organisms. Fluvial runoff is the main dSi supplier to the marine env
    26 KB (3,923 words) - 20:02, 4 August 2023