Match the soil horizon with the correct definition
A) Accumulation of clay particles from upper layers
B) Partially altered parent material that is easily identifiable
C) Composed of a mixture of humus and mineral material
D) Consists largely of organic material, still identifiable in uppermost layer
E) Light-colored, depleted of soluble materials, little organic material
1) O horizon
2) E horizon
3) C horizon
4) A horizon
5) B horizon
Answers: 1) D 2) E 3) B 4) C 5) A
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