TASC Environmental Science Level 3 Practice Questions - TASC Environmental Science Level 3 (ESS315118) Exam

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Which biological process converts inert atmospheric nitrogen gas (N2) into biological ammonium (NH4+), making nitrogen accessible to plants?

Biological nitrogen fixation carried out by Rhizobium and Azotobacter bacteria Denitrification conducted by Pseudomonas species in anaerobic soils Nitrification carried out by Nitrosomonas and Nitrobacter bacteria Ammonification conducted by decomposers during organic matter decay

Correct Answer:

Biological nitrogen fixation carried out by Rhizobium and Azotobacter bacteria

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