CARBON CYCLEAmrit T. , Angel P. , Kesiya J.
THE GENERAL CYCLE (A SUMMARY)What is the Carbon Cycle?A series of processes in which carbon is used and recycled in the environment, including it’s use in living tissue as well as the burning of fossil fuels in which carbon is returned to the atmosphere in the form of CO2
5 COMPONENTS•There are 5 main components to the carbon cycle:1. Atmosphere2. Terrestrial biosphere3. Ocean4. Sediments (including fossil fuels)5. Earth’s interior (mantle and crust)
ATMOSPHERE•Exists in 2 forms in the atmosphere:•Carbon dioxide•MethaneBoth of these are partially responsible for the greenhouse effect which is where heat is trapped in the atmosphere by the gases. CO2 is, however, removed from the atmosphere through photosynthesis. I talso dissolves directly into bodies of water and in precipitation of raindrops. The CO2 combining with water forms carbonic acid.
TERRESTRIAL BIOSPHERE•The collective term for all the world’s land vegetation, soil etc.•Carbon stored inside plants can be transferred into other organisms during plant consumption e.g. when animals eat plants the carbon is converted into other forms and used inside the animals (as with bacteria & other heterotrophs) •Dead plant material remains in soils for some time before respired by heterotrophs•Autotrophs use photosynthesisto convert CO2 releasing oxygen.
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