Soils

11. Which of the following soil organisms is responsible for breaking down dead organic matter?
a. Bacteria
b. Fungi
c. Protozoa
d. Nematodes

12. What is the term used to describe the process of soil particles being blown away by wind?
a. Erosion
b. Leaching
c. Weathering
d. Deposition

13. Which of the following nutrients is most likely to be deficient in a soil with a high pH?
a. Nitrogen
b. Phosphorus
c. Potassium
d. Calcium

14. Which of the following soil properties affects the ability of soil to hold and exchange nutrients?
a. Texture
b. Structure
c. pH
d. All of the above

15. Which of the following soil horizons is typically the topsoil?
a. A horizon
b. B horizon
c. C horizon
d. O horizon