Szénkörforgatás

Szénkörforgatás refers to the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. It is one of the most important of the biogeochemical cycles. The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. It is one of the most important of the biogeochemical cycles. The Earth's carbon is always in movement. It can be found in the atmosphere, oceans, land, and living organisms. These different reservoirs are connected through various processes. Photosynthesis by plants and algae takes carbon dioxide from the atmosphere and converts it into organic compounds. Respiration by living organisms releases carbon dioxide back into the atmosphere. Decomposition of dead organic matter by microorganisms also returns carbon to the atmosphere and soil. Carbon is also exchanged between the atmosphere and oceans through diffusion. Over geological timescales, carbon is stored in rocks and fossil fuels. Volcanic activity and the burning of fossil fuels release this stored carbon back into the atmosphere. Human activities, particularly the burning of fossil fuels and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and climate change. Understanding the carbon cycle is crucial for comprehending Earth's climate system and the impacts of human activities on the planet.