Carbon cycles from the atmosphere into plants and living things. For example, carbon is a pollutant in the atmosphere as carbon dioxide.
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Photosynthesis. Plants pull in carbon dioxide out of the air through photosynthesis. ...
Decomposition. ...
Respiration. ...
Combustion.
I hope that this one is correct - C
Since transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.