1. The Carbon and Oxygen Cycle
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2. The Carbon Cycle

3. The Carbon Cycle Carbon can be found in all living organism (organic)
the atmosphere (inorganic)
the ocean (inorganic)
rocks (inorganic)
fossil fuels (coal, petroleum, natural gas )(inorganic)

4. Inorganic Carbon is found in the
Atmosphere
smallest storage of inorganic carbon.
only 0.3% of the gases
we breath in contains carbon dioxide
Ocean
– carbon dioxide is dissolved
in the water
carbon is also found as carbonate (CaCO3) in shells and
hard structures

5. Inorganic Carbon is found in the
c) Rock
- on the ocean floor (limestone)
- on the earths surface as sedimentary rock
- this trapped carbon is only released back into the cycle through geological conditions (volcanic activities, earthquakes)

6. Organic Carbon is found in;
a) Living Organisms
in DNA, carbohydrate, proteins, and fat
this carbon is released back into the cycle through decomposition
Bogs

7. Organic Carbon is found in
Bogs (very little decomposition)
the carbon in bogs (as living organic matter) gets trapped under sediments
pressure and heat turns these sediments into coal
Ocean floor
– conditions similar to bogs, organic matter is not decomposed and will turn into oil.

8. The Oxygen Cycle
Oxygen is found in the atmosphere (O2, O3, CO2), and in living organisms (glucose, proteins, DNA, or important molecules)

9. The Oxygen Cycle
Oxygen moves from the earth into living organism through photosynthesis
Oxygen moves from living organism to the Earth through cellular respiration
Photosynthesis
6 CO2 + 6 H2O  C6H O2
Cellular Respiration
C6H O2  6 CO2 + 6 H2O

10. The Oxygen Cycle
Oxygen is also important in combustion and decomposition