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Types of Biogeochemical passBiogeochemical rhythm method of birth control is crucial for every living organism on Earth. It is potently influenced by life forms, especially plants and microorganisms. A biogeochemical cycle do-nothing be defined as a continuous pathway by which rebirth and circulation of chemical nutrients through both biotic and abiotic compartments of Earth (Butcher, 1992). Generally, biogeochemical cycles can be classified into three major categories which are nitrogen cycle, sulfur cycle and carbon cycle (Refer to Figure 1 in Appendix 1). first off type of biogeochemical cycle is nitrogen cycle. Nitrogen is abundant and chemically sluggish gases, constitutes of about 78% of the nimbus. According to Stevenson and Cole (1999), accumulation in dominion happens through microbial fixation of nitrogen in the presence of ammonia, treat and nitrite depletion exists in the wreak of crop removal, leaching and volatilization. In term of that, the process of releasin g compound during decomposition is called mineralization. Mineralization process is carried out by the microorganisms in which it releases carbon, and also ammonium (Sprent, 1987). As a result, many kinds of organic centralize nitrogen present, like urea, organic bases, such as purines and pyrimidines, and amino compounds. Animals comport nitrogenous wastes and will eventually produce lots of nitrogen (Sprent, 1987). some(prenominal) pathways are illustrated throughout the nitrogen cycle, such as nitrogen fixation, ammonification, nitrification and denitrification. provide (1921) stated that the process of converted gaseous nitrogen into ammonia or ammonium is nitrogen fixation, while ammonium can also be produced through the decaying of nitrogenous organic substance, which is called ammonification. Afte... ...ut slowly uptake of carbon dioxide from the atmosphere (Zepp, & Sonntag, 1995). Hanson, Ducklow and Field (2000) mention that in the ocean, some of the carbon taken up by phytoplankton in order to make shells of calcium carbonate that settles to the back tooth of the sea to form sediments. In geological carbon cycle, carbonic pane of glass combines with magnesium and calcium in the Earths crust to form insoluble carbonates. hundred dioxide reacts with some minerals to form limestone, then dissolves by rainwater and carries to the oceans. Once there, it can precipitate out of the ocean water and form layer of sediments on the sea floor. The limestone melts and reacts with other minerals under high heat and pressure outlying(prenominal) below the Earths surface by releasing carbon dioxide. The carbon dioxide is then back into the atmosphere through volcanic eruptions (Lockwood, & Hazlett, 2010).