Cycles

Condensation

Precipitation

Run off

Atmosphere

Burning Fossil Fuels

Decay

Respiration

Burning

Carbon Dioxide exchange

Rock Formation

Coal, Oil, or Gas

Water Cycle

Animals breathe in Oxygen

Oxygen

Animals breathe out carbon dioxide

Plants make Oxygen with photosynthesis, and carbon dioxide.

Oxygen Cycle

Evaporation/Transpiration

Carbon Cycle

Nitrogen in the Atmosphere

Nitrogen Fixation

Nitrifying Bacteria

Dentrification

Nitrogen Cycle