Question

question 13. what is the main element involved in the carbon cycle? a. oxygen b. carbon c. hydrogen d. nitrogen

Explanation:

The carbon cycle is a biogeochemical cycle that involves the movement of carbon through the Earth's atmosphere, biosphere, hydrosphere, and lithosphere. The main element in this cycle is carbon. Oxygen is involved in processes like respiration but is not the main element of the carbon cycle. Hydrogen is part of water and organic compounds but not the focus of the carbon cycle. Nitrogen has its own cycle (nitrogen cycle).

Answer:

B. Carbon