Question

In ancient times, plant and animal remains got buried, compressed, and transformed into fossil fuels like coal. Burning of these fossil fuels today will affect which biogeochemical cycle?
A. The water cycle

B. The phosphorus cycle

C. The carbon cycle

Answer 1

Option C. The carbon cycle. Because the fossil fuels are organic compounds, which consist of chains of Carbon and hydrogens. When you burn them you produce CO and CO2 which go to the atmosphere.