Acrobat-document
Ministry of Finance of the
Russian Federation
Topsoil
A-horizon
Mites
B a c t e ria
Nem
a
F u n g us
Pro
tozoa
life possible
on Earth.
KEEP SOIL [...] That are responsible of
biogeochemical processes.
t n o d ul e
Subsoil
C- and B-horizon
Microscopic invertebrates such as
collembolans, diplura, proturans