Hello Dear,

The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. The carbon cycle is a mechanism in which carbon moves from the atmosphere to organisms and the Earth, and then back to the atmosphere. Plants take carbon dioxide out of the air and use it to produce food. Animals then consume food and carbon is retained in their bodies or released as CO2 by respiration. We've got a fixed amount of carbon on Earth and in the atmosphere. We're in our own bubble, with little to leave or reach our universe. We don't get the intergalactic deliveries of required elements like carbon.

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