Answer:
The correct answer is - food chain (after through the) and decomposers (after soil by).
Explanation:
The carbon cycle is the cycle of the movement of the carbon atom in different spheres of the earth that also include the biosphere where it is internalized in the form of the plants to the food chain as plants create their food from atmospheric carbon dioxide and water in presence of the light.
the all-carbon of the food chain is recycled back to the soil by the decomposers that decompose the dead organic matter such as fungi and bacteria.
Thus, the correct answer is - food chain (after through the) and decomposers (after soil by).