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KB Term:
Sigma KEE - Sand
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sand
Sand
is a
Mixture
of loose fragments of
Mineral
s or
Rock
s. Smaller than pebbles and larger than
Silt
and
Clay
(in the Wentworth Scale), sand particles range from 0.062
Millimeter
to 2
Millimeter
in
approximateDiameter
.
Sand
is formed by %Erosion of rocks through the action of ater,
Ice
or
Air
.
Relationships
Parents
soil
Soil
is a substance composed of fine rock material disintegrated by geological processes, mixed with humus, the organic remains of decomposed vegetation.
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Sigma version 3.0 is
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produced by
Articulate Software
and its partners
