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...So01
Finger test to examine the quality of soil
So02 Water content
and density of different soil samples
So03 Dried up soil:
Does it contain water?
So04 How much air
is in the soil sample of So3?
.So05
Soil may contain acids or their opponents
So06 Salts are dissolved
in soil
So07 Soils as environment
of animals
So08 Potatoes and
fungi grow in the soil
So09 Red soil contains
iron compounds
So10 Lime soil 1:
Limestone mining and processing
So11 Lime soil 2:
Baobab Farm, recultivation of a former limestone quarry
So12 Aquaculture:
Plants may grow without soil
back.......
...........first published: 20.12.2001.............last
modification: 07.02.2011
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