Soils

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56. Which of the following is a measure of the ability of soil to retain moisture?
a. Soil organic matter
b. Soil texture
c. Soil structure
d. Soil pH

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57. What is the term used to describe the process of adding lime to the soil to increase the pH?
a. Liming
b. Acidifying
c. Fertilizing
d. Amending

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58. Which of the following nutrients is most likely to be deficient in a soil with a low organic matter content?
a. Nitrogen
b. Phosphorus
c. Potassium
d. Calcium

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59. Which of the following soil horizons is characterized by the presence of unweathered parent material?
a. A horizon
b. B horizon
c. C horizon
d. R horizon

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60. What is the term used to describe the process of adding acid to the soil to decrease the pH?
a. Liming
b. Acidifying
c. Fertilizing
d. Amending

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