Question

which sphere is involved in the carbon biogeochemical cycle?
atmosphere
geosphere / lithosphere
biosphere
hydrosphere
all of the above

Explanation:

The carbon biogeochemical cycle moves carbon between all Earth's spheres: the atmosphere holds carbon dioxide, the geosphere/lithosphere stores carbon in rocks and fossil fuels, the biosphere has carbon in living organisms, and the hydrosphere dissolves carbon dioxide in water.

Answer:

E. All of the above