Respuesta :
Transformations of soil carbon occur in two stages: The first stage involves the synthesis of organic molecules during the atmospheric carbon dioxide (CO2) fixation phase, which is carried out by photosynthetic organisms. By utilizing energy for their upkeep and growth, these substances are utilized by organisms that regenerate CO2 via respiratory oxidation processes and return to the soil.
What is co2?
- At ambient temperature, carbon dioxide (CO2) is a chemical substance that exists in the gaseous state and is made up of molecules with one carbon atom covalently doubly bound to two oxygen atoms in each molecule.
- In the atmosphere, carbon dioxide serves as a greenhouse gas because it absorbs infrared radiation despite being transparent to visible light.
- It has increased from pre-industrial levels of 280 ppm to be a trace gas in the Earth's atmosphere at 417 ppm (or approximately 0.04%) by volume.
- The main contributor to these elevated CO2 concentrations, as well as to global warming and climate change, is the burning of fossil fuels.
What is soil?
- The mixture of organic matter, minerals, gases, liquids, and living things that makes up soil—also referred to as earth or dirt—supports life.
- The word pedolith, which is frequently used to describe soil, is derived from the ancient Greek word v, which means "ground, earth," and means "ground stone" in the sense of foundation stone.
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