Hydroxyl ion concentrations are greatest in a soil solution with a pH value of ________.
A) 6.5 B) 5.0 C) 4.0 D) 0.1
Question 2
Increasing the organic matter content of a soil is likely to:
A) decrease the soil's water holding capacity.
B) increase the soil's water holding capacity.
C) have no effect on water holding capacity.