4.9 - Carbon Cycle

- 1. Photosynthesis - CO2 + H20 ----Photosynthesis (Chlorophyll)----> Glucose + O2
    - CO2 comes from the atmosphere = 0.03%
    - Reduces the atmospheric CO2 


- 2. Feeding - Producer ---> primary consumer (takes carbon from the producer and grows)  ---> secondary consumer
    - All respire sending out CO2 into the atmosphere 


- 3. Respiration - Glucose + O2 ---enzymes in the cell---> energy + CO2 + H2O 
    - Adds CO2 to the atmosphere 


- 4. Decomposition - death of organic molecules ----bacteria, fungi----> CO2 


- 5. Combustion - fossil fuels - Compression and pressure of animals and plants. Results in oils and coals -----combustion---> CO2
    - Industrial and vehicles combust fuel for their movement 
    - natural combustion - Lightning striking vegetation = forest fries, grassland fires