Soil Systems

1. The zone of illuviation is commonly the 

O horizon
A horizon
B horizon
C horizon

 

2. A soil texture with 30% Clay, 30 % silt, and 40% Sand is classified as a

loam
clay loam
silty clay loam
sandy clay 

3. Which of the following soil structures would impede the infiltration of water the most?

Platy
Blocky
Crumb
Columnar

4. Which of the following soil orders is most associated with broadleaf deciduous temperate forests?

Spodosol
Aridisol
Mollisol
Alfisol

5. Soil profiles are likely to be the least developed

at the top of a hill
at the middle of a hill slope
a slight distance ahead of a hill slope
none of the above as hill slope site has nothing to do with soil development

6. Which of the following soil horizon processes creates the acidification of soils by the break down of organic matter?

Additions
Removals
Transformation
Transfer 

7. Which of the following is not a soil forming factor?

Time
Organisms
Parent material
Season

8. Which of the following soil forming processes is likely occurring at letter L

Calcification
Laterization
Podzolization
Acidification

9. Which soil would I most likely find at location E

Spodosol
Ultisol
Mollisol
Aridisol

10. Which soil would I most likely find at location C

Spodosol
Ultisol
Mollisol
Aridisol

Score =
Correct answers:

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