Toheed Mehrani on Instagram: "Carbon Cycle is the natural biogeochemical process by which carbon continuously circulates between the atmosphere, living organisms (biosphere), oceans (hydrosphere), and the Earth’s crust (lithosphere). In simple words: It explains how carbon moves from air → plants → animals → soil & oceans → back to air. Key processes involved: Photosynthesis: Plants and marine phytoplankton absorb CO₂ to make food. Respiration: Living organisms release CO₂ back into the atmosphe