In Earth science, a biogeochemical cycle or substance turnover or cycling of
substances is a pathway by which a chemical substance moves through both
the Carbon cycle.
A biogeochemical cycle is a circuit/pathway by which a chemical element ... The
elements that are moving through the biotic or abiotic factors may be ... Bacteria
and fungi carry out this process when deprived of oxygen. ... for the reason that
life is so dependent on water as the medium of chemical reactions within cells.
The biosphere is a system characterized by the continuous cycling of matter and
an ... The elements carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur,
... All life on Earth depends ultimately upon green plants, as well as upon water.
... the distribution patterns of these biotic units and to the processes that produced
Dec 17, 2013 ... Which biogeochemical cycle is least dependent on biotic processes? ... The
exchange of water, carbon, nitrogen, and all other compounds ...
Generally, reservoirs are abiotic factors while exchange pools are biotic factors.
... Nitrogen cycle; Oxygen cycle; Carbon cycle; Phosphorus cycle; Sulfur cycle ...
Weathering processes initiated by organisms can also free oxygen from the land
Mar 2, 2006 ... BioGeoChemical Cycles - The Water Cycle - Carbon Cycle - Oxygen Cycle ....
This process releases the energy, which is either used by the ... This is one case
in which the scientific meaning of a word is very dependent on its context. ... to at
least 2 of the 3 reasons for the pyramid of biomass given above.
The dynamics of an ecosystem involve two processes that cannot be fully ...
Energy flows through ecosystems, while matter cycles within them. ... An
ecosystem's energy budget depends on primary production. .... Nutrient circuits
involve both biotic and abiotic components of ecosystems and are called
each process depends greatly on the conditions of individual springs. ... potential
biotic uptake and transformation of inorganic nutrients, and potential ... describe
the biogeochemical processes related to nutrient cycling in springs or similar
systems, ..... At least one study has used this enzyme activity to assess potential
The carbon cycle is heavily dependent on microbial communities that
decompose or .... activity is arguably the least-understood component of these
processes. ... microbes and biotic or abiotic surfaces (e.g., plant roots and soil