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SlideshowReport

The nitrogen cycle. The five main parts of the nitrogen cycle are:

Description
(1) nitrogen fixation, (2) nitrification, (3) assimilation, (4) ammonification, and (5) denitrification. The recycling of nitrogen from dead plants and animals into the soil and then back into plants is of paramount importance. The width of the arrows indicates the relative importance of each process.
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