Page 3 - 2. Lesson notes- Bio- geo chemical cycles-2
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Carbon Cycle
Carbon cycle is the process where carbon compounds are interchanged among the
biosphere, exosphere, hydrosphere, and atmosphere of the earth
Carbon Cycle Steps
Following are the major steps involved in the process of the carbon cycle:
1.Carbon present in the atmosphere is absorbed by plants for photosynthesis.
These plants are then consumed by animals, and carbon gets accumulated into their bodies.
2.These animals and plants eventually die, and upon decomposing, carbon is released back
into the atmosphere.
3.Some of the carbon that is not released back into the atmosphere eventually become fossil
fuels.
4.These fossil fuels are then used for man-made activities, which pumps more carbon back into
the atmosphere.
5. Some of the carbon from the volcanic eruption has been found to be deposited in the form
of limestone.
