describing one or more biogeochemical cycles and the effects of human activities upon them

Some elements involved in geochemical and biogeochemical cycling are of concern in relation to
limited natural or ready availability (via industrial production) of the compounds involved in the cycles.
Select one or more of these elements, engage in some research and prepare a short essay, with
appropriate references, that describes the present and possible future situation in relation to the security
of the cycle. Structure your work with an introduction, your findings and conclusions (using font size 12
and 1.5 line spacing). You should start your research from your present individual knowledge of chemistry
(allowance will be made for this in the assessment).

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