Nitrogen Cycle

Pollution

________ releases nitric oxide into atmosphere.

Bacteria

________ in soil takes N2 in atmosphere and create amonia (plants can use this)

N2

________ is very stable and non reactive- unusable to plants and animals.

Animals

________ eat plants to receive Nitrogen.

Nitrogen

________ is the most common gas (78 %)

N2

Lightning can break the ________ bonds to have them attach to O2 and make Nitrogen Oxide.

Ammonification

when a plant or animal decays and Nitrogen is released back into the soil

Denitrification

when soil nitrate is converted to N2O and N2 gases

Nitrification

when amonia oxizes to nitrate and nitrite

Nitrogen Fixation

when N2 combines chemically to create amonia and nitrates and nitrites

N2 is very stable and non reactive

unusable to plants and animals