Why Is Cation-Exchange Capacity (CEC) an Important Soil Characteristic

question 129

Multiple Choice

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 a measure of soil fertility; the higher the CEC the higher the soil fertility.
• C) CEC is an indirect way to measure soil pH; it indicates whether the soil is neutral, alkaline, or acidic.
• D) CEC is used to infer soil texture without having to use a soil texture triangle.

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Definitions:

Gonads

The primary reproductive organs in animals, responsible for producing gametes and, in many cases, hormones; including ovaries in females and testes in males.

Testes

The primary male reproductive organs that produce sperm cells and male hormones, notably testosterone.

Ovaries

The female reproductive organs in animals and plants where ova or eggs are produced; in animals, they also produce hormones like estrogen and progesterone.

Endometrium

The inner lining of the uterus, which thickens during the menstrual cycle in preparation for possible implantation of an embryo.