Carbon is one of the important elements found in all organisms. The element is circulated in the lithosphere, atmosphere, biosphere, and rhizosphere through the carbon cycle.
The stages that involve the addition of carbon in the atmosphere are:
- Factory emissions will release carbonic compounds, carbon dioxide, and other carbon elements directly into the atmosphere. The respiration process of humans also releases carbon dioxide into the air.
- The process of cellular respiration, in which living organisms utilize oxygen and yield carbon dioxide also helps in the circulation of carbon. Through cellular respiration, the carbon is directly added into the air.
Thus, plant respiration, factory emissions, and animal respiration release carbon dioxide directly into the air.
To know more about the carbon cycle, refer to the following link:
https://brainly.com/question/1627609