The water content in a soil is known to be .2 m3/m3 and the potential of pure water outside the ...

The water content in a soil is known to be .2 m3/m3 and the potential of pure water outside the system is assumed to be 0. If the soil is a clay loam you would calculate the soil water potential (in kPa) to be.
 
  A) 20 B) -3100 C) -5 D) 0 E) -20

Question 2

Which of the following is not considered one of the five major factors influencing soil formation?
 
  A) climate
  B) valence state
  C) living organisms
  D) topography
  E) native parent materials?

Question 3

In which of the following situations would you expect downward movement of soil water through the profile to be most rapid?
 
  A) sandy loam in upper layers with a layer of coarse gravel underneath
  B) sandy loam in upper layers with a clay band underneath
  C) clay texture throughout the profile
  D) uniformly textured sandy loam profile
  E) silt loam in upper layers underlain by a sandy layer

Question 4

Unsaturated water flow ________.
 
  A) is faster than saturated flow
  B) is slower on sands than on clays if the soil moisture content is high
  C) is driven primarily by the force of gravity
  D) occurs on soils that are at field capacity
  E) is stimulated by the osmotic potential

Question 5

Igneous rocks can best be characterized as ________.
 
  A) rocks formed from the recrystallization of sedimentary material
  B) rocks containing a mixture of primary and secondary minerals
  C) rocks formed when molten magma solidifies
  D) rocks found primarily near volcanoes.
  E) rocks containing both feldspars and micas

Question 6

The osmotic potential would likely be lowest in soils of which of the following orders?
 
  A) Histosols B) Spodosols C) Aridisols D) Oxisols E) Ultisols