Cycles

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Nitrogen Cycle

Dentrification

Nitrifying Bacteria

Nitrogen Fixation

Nitrogen in the Atmosphere

Carbon Cycle

Evaporation/Transpiration

Oxygen Cycle

Plants make Oxygen with photosynthesis, and carbon dioxide.

Animals breathe out carbon dioxide

Oxygen

Animals breathe in Oxygen

Water Cycle

Coal, Oil, or Gas

Rock Formation

Carbon Dioxide exchange

Burning

Respiration

Decay

Burning Fossil Fuels

Atmosphere

Run off

Precipitation

Condensation

Cycles