Nitrogen Cycle

What is free nitrogen of air converted to?

• Plant Proteins

• Soluble Nitrates

• Nitrogen Compounds

• Non-supporter

Nitric oxide + Oxygen =

• Nitric acid

• Nitrogen Dioxide

• Calcium nitrate

• Water

Nitrogen is

• Reactive

• Unreactive

• Inert

• Inert and unreactive

Nitrogen is a _____ of combustion

• Supporter

• Supplier

• Non-supporter

• Important

Symbiotic bacteria is contained in _______ of leguminous plants

• Roots

• Stem

• Nodules

• Leaves

Nitrogen controls combustion but does not preserve food packages.

• True

• False

• Can't tell

• Won't tell

Nitrogen _______ the activity of oxygen in air

• Controls

• Fills

• Reduces

• Dilutes

Nitrogen Dioxide + _____ + Oxygen = Nitric acid

• Calcium

• Sodium

• Water

• Carbon Dioxide

________ _______ are absorbed by plants and converted to plant proteins

• Symbiotic bacteria

• Soluble nitrates

• Nitrous oxide

• Carbon dioxide

What is filled in food packets?

• Oxygen

• Nitrogen

• Carbon dioxide

• Methane