Cation exchange capacity is likely to decline in older souls because Select one:

Question

Cation exchange capacity is likely to decline in older souls because
Select one:
A. Clay structure changes over time from 2:1 to 1:1 because of long-term weathering.
B. Plants take up and store all of the remaining cations.
C. There is no parent material left in older soils.
D. Anions become more common over time in older soils.
Cation exchange capacity is likely to decline in older souls because
Select one:
A. Clay structure changes over time from 2:1 to 1:1 because of long-term weathering.
B. Plants take up and store all of the remaining cations.
C. There is no parent material left in older soils.
D. Anions become more common over time in older soils.

Select one:
A. Clay structure changes over time from 2:1 to 1:1 because of long-term weathering.
B. Plants take up and store all of the remaining cations.
C. There is no parent material left in older soils.
D. Anions become more common over time in older soils.

Explanation / Answer

Cation exchange capacity is likely to decrease in older soil because

A) clay structure changes over time from 2:1 to 1:1 because of long term weathering.

As the sandy soil has lower CEC value due to lesser surface of sandy particles in compare to clay minerals which decreases the capacity to hold the nutrients.

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