The soil with the highest cation exchange capacity will have
A)abundant organic matter and acidic conditions.
B)abundant organic matter and alkaline conditions.
C)little organic matter and acidic conditions.
D)little organic matter and alkaline conditions.

Question

Quizplus · Accepted Answer

Organic matter and alkaline conditions are the two factors that contribute to a high cation exchange capacity. Organic matter helps to increase the number of negatively charged sites in the soil, while alkaline conditions promote the retention of cations on those sites. Therefore, choice B (abundant organic matter and alkaline conditions) is the best choice.

The Soil with the Highest Cation Exchange Capacity Will Have