Correct Answers
nitrogenicyclei-iCorrectiAnswer-
fixation,imineralization,initrification,idenitrification
nitrogenifixationi-iCorrectiAnswer-
takesilotsiofienergyitoibreakiN2itripleibondsi
-ilightningistrikes
-initrogen-fixingimicrobes
Nitrogenimineralizationi-iCorrectiAnswer-
fungiiandibacteriaiinisoilicanimineralizeiintoiinorganiciN
Nitrogenilimitationi-iCorrectiAnswer-
Nilimitsiplantiproductivityiinimostiagriculturalisystems
Haber-Boschiprocessi-iCorrectiAnswer-
aiprocessiusediiniexplosivesiandifertilizeriwhereihighitempsiandipressur
eiareiuseditoibreakianiNibondiandicombineiN2iandiH
Impactsi-iCorrectiAnswer-
humansiaccelerateiNiloss,iexcessiNiiniecosystems,iexcessiNiiniatmosphe
re
, Solutioni-iCorrectiAnswer-leverageimoreispeciesitoifixinitrogen
AnthropogeniciNiiniatmospherei-iCorrectiAnswer-
producedibyioxidationiofiN2ibyiO2iiniinternalicombustioniengines,iN2Oii
ncreasesibyi.3%iaiyear
acidiraini-iCorrectiAnswer-
CO2ireactsiwithiwateritoicreateicarboniciacid,ilowersipHiwhichiharmsith
eisoil
Phosphorusicyclingi-iCorrectiAnswer-
importantitoiATP,ibutiisiveryislow,iprimaryisourceitoibiosphereiisiweath
eringiofirocks
plantsiandimycorrhizalifungii-iCorrectiAnswer-
PlantsigetiPiiniexchangeiforicarbon,ilargeinetworkiofiroots,ireleaseienzy
mesithatimakesiphosphorusiavailable
runoffiandierosioni-iCorrectiAnswer-
rootsiandilittericausesiabouti20itonsiofisoilierodediperihectareioficropifie
ldsieveryiyear