Nitrogen cycle
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Last updated 11:52 AM on 3/16/26
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5 Terms
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nitrogen fixing bacteria
found in soil , converts nitrogen gas into ammonium compounds
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the role of lightning
lightning splits the bond between two N atoms in N2, turning into N2O (nitrous oxide) and NO2 that dissolve in rain water and leach into the soil
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nitrifying bacteria
converts ammonium compounds into nitrites and then nitrates , found in soil and freshwater
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decomposer bacteria
decomposers break down proteins in decayed matter of plants and animals into ammonium compounds
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denitrifying bacteria
Takes nitrates out of the soil and converts it back into N2 gas to the atmosphere
