WAEC Biology 2011 Theory — Question 17

Question 17 of 27 from the West African Examinations Council (WAEC) Biology 2011 Theory paper, with the correct answer and a full explanation.

5(a)(ii) What is nitrogen fixation?

Model answer

Nitrogen fixation is the process by which some organisms (such as rhizobium leguminosarium) convert atmospheric nitrogen to soil nitrates.

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