This can transform nitrogen in the atmosphere into a usable form of nitrogen
rain
ice
lightning
sun
What is the role of denitrifying bacteria
change nitrate back into nitrogen gas
change nitrogen gas into nitrate
absorb carbon dioxide in the soil
release oxygen gas into the atmosphere
What is the role of decomposing bacteria in the nitrogen cycle?
change Nitrogen gas into Nitrate
Return the nitrogen compounds to the soil
Turn nitrogen into water
Turn nitrate into nitrogen gas
Where can nitrogen fixing bacteria be found
Free living in the soil
under the leaves of flowering plants
in the atmosphere
living on the nodules of certain plants
Plants and animals need nitrogen to make __________.
Protein
DNA
Lipids
Minerals
According to this diagram, plants absorb
nitrates
nitrogen fixing bacteria
animals
decomposers
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