http://drexps.blogdrive.com/ drexps blog Tue, 20 Sep 2005 12:00:06 PDT http://www.blogdrive.com Copyright 2005. Art Animation Illnesses http://drexps.blogdrive.com/archive/1.html Tue, 20 Sep 2005 19:55:52 GMT anal sex mature sex mature porn big butts ass to mouth anal porn milf porn lesbian sex Soils contain significant amounts of black carbon (BC) from biomass and fossil fuel combustion. However, its origin, morphology, and chemistry have remained obscure. Here, we examined BC in particle-size and density fractions of the surface soil of a Haplic Chernozem using a scanning electron microscope (SEM) coupled to an energy-dispersive X-ray spectrometer (EDX) in order to investigate the morphological and chemical properties of BC as a function of its origin and fate in soils. The results showed that... (more) http://drexps.blogdrive.com/comments?id=1