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Soil is the natural accumulation of
weathering rocks, minerals, and decomposing plants. Soil may contain
manmade materials such as brick, roof shingle stones, concrete,
glass, and paint.
Soil development is influenced by
geologic parent material, relief, climate, biological activity, man,
and time. Soil examinations can determine whether soils share a
common origin by comparing color, texture, and
composition. |
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Layers of soil exposed at a
grave site. Each layer
must
be sampled.
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