biogeochemical cycle
11Nutrient cycle — …
12Oxygen cycle — The oxygen cycle. The Oxygen cycle is the biogeochemical cycle that describes the movement of oxygen within its three main reservoirs: the atmosphere (air), the total content of biological matter within the biosphere (the global sum of all… …
13Water cycle — The Earth s water is always in movement, and the water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Since the water cycle is truly a cycle, there is no… …
14Mercury cycle — The mercury cycle is a biogeochemical cycle involving mercury. Mercury is notable for being the only heavy metal which is liquid at room temperature. It is a volatile metal and evaporates easily, going into the atmosphere.[citation needed]… …
15Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …
16Carbon cycle — The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.The cycle is usually thought of as four major reservoirs of carbon interconnected by… …
17Phosphorus cycle — The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the… …
18Hydrogen cycle — Hydrogen is one of the constituents of water. It recycles as in other biogeochemical cycles. It is actively involved with the other cycles like the carbon cycle, nitrogen cycle ,sulfur cycle and oxygen cycle as well.Anaerobic fermentation of… …
19Sulfur cycle — Sulfur is one of the constituents of many proteins, vitamins and hormones. It recycles as in other biogeochemical cycles.The essential steps of the sulfur cycle are: * Mineralization of organic sulfur to the inorganic form, hydrogen sulfide:… …
20phosphorus cycle — /ˈfɒsfərəs saɪkəl/ (say fosfuhruhs suykuhl) noun the biogeochemical cycle in which phosphorus, an essential nutrient for plants and animals, is transferred from living things to rocks, sediments, and the ocean floor and then back to living things …
