Other things being equal, a soil with 30 clay of the ________ ...

[AEWBW]

Other things being equal, a soil with 30 clay of the ________ type would be expected to have the greatest potassium -fixing capacity.
 
  A) 1:1 B) allophanic
  C) 2:1 D) crystalline iron oxide

Question 2

Other things being equal, a soil with 30 clay of the ________ type would be expected to have the greatest phosphorus -fixing capacity.
 
  A) 2:1 B) crystalline iron oxide
  C) 1:1 D) allophanic

[Silverbeard98]

Answer to Question 1

C

Answer to Question 2

D