Multiple Choice
The availability of nutrient cations such as Ca2+, K+, and Mg2+ to plants may be insufficient in some soils that have low amounts of _______ particles. These particles have _______ that allow them to hold onto cations and exchange them with the soil solution.
A) sand; strong positive charges
B) clay; weak negative charges
C) sand; semicrystalline structures
D) clay; irregular structures
Correct Answer:
Verified
Correct Answer:
Verified
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