Questions and CORRECT Answers
Soil is: - CORRECT ANSWER - a pedosphere
The five soil forming factors include: - CORRECT ANSWER - time, vegetation/biota,
topography, parent material, and climate
The four soil forming processes include: - CORRECT ANSWER - translocation,
transformation, addition, and loss
Which of the following is true about weathering processes in general? - CORRECT
ANSWER - A brand new pedon will be changed to a soil with contrasting layers due to
weathering
There are different soils here in Auburn where the climate is almost the same because of: -
CORRECT ANSWER - topography, biota, and parent material (all of the above)
If a given soil contains 32cm^3 air, 24 cm^3 water, and 44cm^3 solids, the percentage of space
occupied by water as the percentage of total pore volume will be: - CORRECT
ANSWER - 43%
The master horizon with pronounced organic matter content is the _____ horizon - CORRECT
ANSWER -O
A soil profile consists of the following horizons: Ap, E, EB, B, Bt1, Bt2, BC, CB, Ck. How
many master horizons does this soil contain? - CORRECT ANSWER - Four
A transitional horizon that is more like B than A is: - CORRECT ANSWER - BA
, Water has the highest density at: - CORRECT ANSWER - 3.98
Soil particles with diameters of 0.06, 0.015, and 0.001 mm are classifies as ____,______, and
_____ according to USDA, respectively. - CORRECT ANSWER - sand, silt, clay
The attraction between water and soil surfaces described by which component of soil water
potential? - CORRECT ANSWER - matric
Is a sandy soil has a higher water potential than a clay soil, water will flow from the ______ soil
to the ______ soil - CORRECT ANSWER - sandy; clay
According to the USDA land capability classification, which of the following designations
indicated land with the most severe limitation? - CORRECT ANSWER - VIII
Soils found across a large landscape differ due to their parent materials when the impacts of all
other soil forming factors are not significant. This condition is known as: - CORRECT
ANSWER - lithosequence
The 18 essential nutrients we discussed in this class will include: - CORRECT ANSWER -
B, C, Ca, Cl, Co, Cu, Fe, H, K, Mg, Mn, Mo, N, Ni, O, P, S, Zn
After defeating the Carthaginian army, what did the Roman army do to the fertile fields of the
Carthage some 2100 years ago? - CORRECT ANSWER - added salt
If a soil particle has a radius of 0.003 cm, the capillary rise of water in the tube would be -
CORRECT ANSWER - 50 cm
Characteristics of soil colloids are: - CORRECT ANSWER - very small size and
electronegative charges