Part V of "Matter cycles": The carbon cycle
Carbon is a very important element, as it makes up organic matter, which is a part of all life. Carbon follows a certain route on earth, called the carbon cycle. Through following the carbon cycle we can also study energy flows on earth, because most of the chemical energy needed for life is stored in organic compounds as bonds between carbon atoms and other atoms.
The overall reaction of photosynthesis is:
1) The aquatic carbon cycle
2) The terrestrial carbon cycle
Carbon dioxide (greenhouse gas)
As many people know carbon dioxide is a greenhouse gas, which basically means that too much carbon dioxide in air causes the earth to warm up.
For more information on CO2, move to the carbon dioxide page
For more information on carbon, move to the periodic chart
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To the matter cycles pollution page