Soil colloids (clay particles)have ________ charges on their surfaces which attract ________ from the soil solution.
A)positive cations
B)positive anions
C)negative cations
D)negative anions

Question

Quizplus · Accepted Answer

Soil colloids (clay particles) have negative charges on their surfaces due to the presence of permanent negative charges and/or negative charges resulting from the adsorption of ions. These negative charges attract positive cations (such as calcium, magnesium, and potassium) from the soil solution, which can be important for plant growth and nutrient availability. Therefore, the best choice is C) negative cations.

Soil Colloids (Clay Particles)have ________ Charges on Their Surfaces Which