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11 Cards in this Set

  • Front
  • Back

soil

is the loose weathers ministerial earths surface

bedrock

is the solid layer of rock beneath the soil

humus

the decayed organic material in soil

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fertility

rich soil in the nutrients that plants need to grow

loam

soil that is made up of about equal parts of clay sand and silt

pH scale

measures substances

soil horizon

is a layer of soil that differs in color

top soil

a crumbly dark brown soil es a mixture of humus clay and other minerals

subsoil

the b horizon

decomposers

the orginism that break the remains of dead animals