Why is cation-exchange capacity (CEC) an important soil ...

[CQXA]

Why is cation-exchange capacity (CEC) an important soil characteristic?
 
  A) CEC is an indication of the soil permeability; the lower the CEC the higher the permeability.
  B) CEC is used to infer soil texture without having to use a soil texture triangle.
  C) CEC is an indirect way to measure soil pH; it indicates whether the soil is neutral, alkaline, or acidic.
  D) CEC is a measure of soil fertility; the higher the CEC the higher the soil fertility.

Question 2

Carbon dioxide concentrations in soil are ________ than in the atmosphere because of ________.
 
  A) lower; transpiration B) lower; plant photosynthesis
  C) higher; decay of dead plants and animals D) higher; ongoing respiration in the ground

[LegendaryAnswers]

Answer to Question 1

D

Answer to Question 2

D

[CQXA]

TYSM

[rachel]

Gracias!