The plants and animals that live and then die are the bio part; the earth that they decompose into comprises the geo part; and the process by which organic matter returns to the chemical elements in the earth is explained by the chemical part. There are four biogeochemical cycles, and each of them returns to the earth important elements that are required in living organisms.the four cycles include (a) The water cycle(b)The Carbon Cycle ,(c) The phosphorous cycle, (d) The Nitrogen cycle.
The open access journals are peer reviewed scholarly journals of Journals of Environmental Analytical Chemistry. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in SCOPUS, COPERNICUS, CAS, EBSCO and ISI.
Last date updated on July, 2014