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Nitrogen Fixation
bacteria Converts unusable Nitrogen gas (N2) into usable forms
Converts Nitrogen gas into Ammonia (NH3)
Nitrification
Ammonia is converted into Nitrite, then Nitrate
Ammonia is a form of nitrogen that can be toxic. Converted into usable and stable forms
Assimilation
Plants/algae absorb Nitrate
Eaten by animals
Ammonification
decomposers break down organic material, like waste
Converts organic Nitrogen gas to Ammonia, then dissolved to Ammonium (NH4+)
Denitrification
Denitrifying bacteria convert Nitrate back to Nitrogen gas
Gas goes back up to the atmosphere