The diagram illustrates the cycle of emission of carbon dioxide, which is the main source of carbon in the atmosphere, and its movements occur due to both natural and anthropogenic influences.
Overall, it could be seen that the carbon cycle consists of several interconnected stages, including the release CO2 of and its simultaneous chemical interactions with water and lower layers of the earth.
The most prominent stage involves the release of carbon dioxide into the atmosphere, owing to factors such as industrial emissions and respiration of living organisms, including plants and animals. Biological processes of plant respiration stimulate the gas to undergo transformation by the trees CO2 absorbtion, using the sun’s energy to produce oxygen, while the gas travels through the respirational root system of plants, accessing the water, and becomes stored in fossil fuels.
Carbon release happen owing to anthropogenic factors such as vehicle and manufactural activities, where industrial facilities release a large amount of the gas through factory emissions, as well as transport, which, in turn, contribute to the increase of CO2 levels.