Answer:
a. geosphere, c. atmosphere, f. biosphere
Explanation:
In this three parts, the carbon is present, for example in the geosphere that is the solid part of our planet, the carbon moves from the organic wastes of the living things to form some fossil fuel like the petroleum.
In the atmosphere, the carbon, as carbon dioxide will react with other molecules to form oxygen or to form part of the atmosphere per se, so it will have a specific role.
In the biosphere, the carbon can exchange with oxygen, and into another chemical compounds like sugar inside the human body, in the respiration of photosynthetic processes.
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