Clay Soils Will Usually Have a Higher Cation Exchange Capacity

question 2

Multiple Choice

Clay soils will usually have a higher cation exchange capacity than sandy soils because

• A)clay particles have round surfaces that reduce surface area where positively charged particles can accumulate.
• B)clay particles have round surfaces that reduce surface area where negatively charged particles can accumulate.
• C)clay particles have elongated surfaces that support negative charges.
• D)clay particles have elongated surfaces that support positive charges.

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