The ability of colloids to attract ions means that
A)ions needed by plants do not leach as easily as they otherwise would.
B)soil fertility is reduced.
C)plant growth is inhibited.
D)soil drainage is reduced
E)ions move downward to the deepest layers of soil and become unavailable to plant roots.

Question

Quizplus · Accepted Answer

Colloids have a negative charge which attracts positively charged ions such as calcium, magnesium, and potassium. This attraction helps to keep the ions from leaching out of the soil and becoming unavailable to plants. Therefore, the ability of colloids to attract ions means that ions needed by plants do not leach as easily as they otherwise would.

The Ability of Colloids to Attract Ions Means That