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THE CARBON CYCLE . HOW DOES CARBON DIOXIDE MOVE THROUGH THE EARTH, OCEANS AND AIR?. Where is CO 2 on Earth?. Carbon is stored on our planet in the following major pools: as organic molecules in living and dead organisms found in the biosphere; as the gas carbon dioxide in the atmosphere;
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THE CARBON CYCLE HOW DOES CARBON DIOXIDE MOVE THROUGH THE EARTH, OCEANS AND AIR?
Where is CO2 on Earth? • Carbon is stored on our planet in the following major pools: • as organic molecules in living and dead organisms found in the biosphere; • as the gas carbon dioxide in the atmosphere; • as organic matter in soils; • in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite and chalk; • in the oceans as dissolved atmospheric carbon dioxide and as calcium carbonate shells in marine organisms.
Coal Oil JENNY HAGER/ THE IMAGE WORKS http://www.nationalfuelgas.com Organic carbon http://www.upl.cs.wisc.edu/~stroker/jungle.jpg
Inorganic carbon Seashells http://www.cmas-md.org/Images/Sanjay/UnivTop4.jpg Coral http://www.summerclouds.com/Vero/Sea%20Shells.jpg http://educate.si.edu/lessons/currkits/ocean/
The BIG Picture: • Photosynthesis • Cellular Respiration • The Role of Oceans • Formation of Fossil Fuels
Photosynthesis 6 CO2 + 6 H2O + Energy C6H12O6 + 6O2
Cellular Respiration C6H12O6 + 6O2 6 CO2 + 6 H2O + Energy
Combustion • Fossil fuels – form from the remains of plant and animals. • The basic equation for all combustion reactions: • Carbon-based fuel + O2 Energy + Water + CO2
