soil formation

Unique soils form in volcanic landscape. What soil forming factor is

responsible for this uniqueness?

a) Climate (Cl)

b) Organism (O)

c) Relief (R)

d) Parent Material (P)

e) Time (T)

d) Parent Material (P)

Which of the following is true. Thinnest soils are found in

a) Moist, warm climates on low relief terrain

b) Hot, dry climates on steep slopes

c) Hot, dry climates in flat valley bottoms

d) River flood plains

b) Hot, dry climates on steep slopes

Your dog is digging a hole in your front yard. Which horizons, in the

proper order, is she likely to encounter as she digs with gusto

a) A, B, C, D and E

b) O, B, A, R and C

c) O, A, E, B, C and R

d) R, E, B, O, C

c) O, A, E, B, C and R

Which Soil Forming Process is not properly matched with its definition

a) Loss of dissolved components through leaching - Depletion

b) Conversion of parent materials in to clays - Transmutation

c) Vertical movement of minerals or humus - Translocation

d) Dust deposited on a soil surface - Addition

b) Conversion of parent materials in to clays - Transmutation

You are digging a soil pit in the African Savanna. Which type of soil are

likely to encounter

a) Spodosol

b) Alfisol

c) Aridisol

d) Ultisol

b) Alfisol

On a field trip in the Pacifica Northwest, you hike through conifer forests,

crossing parts of the Columbia River flood plain and stopping to rest in a

grassland. The soil orders you are likely to encounter on your travels include

a) Spodosol, Inceptisol, Mollisol

b) Alfisol, Entisol, Aridisol

c) Ultisol, Alfisol, Oxisol

d) Andisol, Vertisol, Histosol

a) Spodosol, Inceptisol, Mollisol

Which of the following soil orders is not matched with its expected soil

forming factor

a) Spodosol - Conifer

b) Alfisol Mediterranean - Climate

c) Aridisol - Desert

d) Ultisol - Grassland

c) Aridisol - Desert