describe the natural fixation of nitrogen.
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Nitrogen is fixed, or combined, in nature as nitric oxide by lightning and ultraviolet rays, but more significant amounts of nitrogen are fixed as ammonia, nitrites, and nitrates by soil microorganisms. Within the nodules, the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
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Nitrogen is fixed or combined in nature as nitric oxide by lightning and ultra violet rays , but more significant amount of nitrogen are fixed as ammonia, nitrites, and nitrites by soil microorganisms.
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