SSC 200 Exam 3 Newest 2025/2026
Questions and Correct Aswers Already
Graded A+
Which cation does not promote soil flocculation?
a. Aluminum
b. Calcium
c. Potassium
d. Sodium - CORRECT ANSWER-d. Sodium
The octahedron building unit of a clay crystal contains _____ atoms.
a. 1 aluminum and 4 oxygen
b. 1 aluminum and 6 oxygen
c. 1 silicon and 4 oxygen
d. 1 silicon and 6 oxygen - CORRECT ANSWER-b. 1 aluminum and 6 oxygen
Which of the following is not a factor affecting CEC?
,a. Type of clay
b. Organic matter content
c. Soil structure
d. Soil texture - CORRECT ANSWER-d. Soil texture
Plants can only obtain nitrogen from the soil by taking up soluble anions. In
general cations cannot be absorbed by plants (TF) - CORRECT ANSWER-False
_____ is not a characteristic of soil colloids.
a. Very small size
b. High surface area
c. Ability to exchange ions with the soil solution
d. Low water holding capacity - CORRECT ANSWER-d. Low water holding
capacity
Some nitrogen-containing fertilizers are significant sources of soil acidity in
cultivated soils (TF) - CORRECT ANSWER-True
Which of the following is a micronutrient?
a. Magnesium
,b. Manganese
c. Nitrogen
d. Sulfur - CORRECT ANSWER-b. Manganese
The conversion of the nitrate nitrogen to N2 is ____.
a. denitrification
b. immobilization
c. nitrification
d. mineralization - CORRECT ANSWER-a. denitrification
Soil phosphorus is associated with eutrophication of fresh water lakes (TF) -
CORRECT ANSWER-True
Which of these ions would be held more tightly
than calcium within the cation exchange complex?
a. Aluminum
b. Magnesium
c. Potassium
d. Sodium - CORRECT ANSWER-a. Aluminum
, Micronutrient deficiencies are more likely to occur where inorganic chemical
fertilizers, rather than organic manures, have been used to stimulate vigorous
plant growth (TF). - CORRECT ANSWER-True
What property of clays does isomorphic substitution affect?
a. The ability to shrink and swell
b. Whether it's classed as 2:1 or 1:1.
c. The amount of specific surface area.
d. The cation exchange capacity - CORRECT ANSWER-d. The cation exchange
capacity
Which of the following increases soil acidity.
a. Leaching of basic cations
b. Application of ammonium sources of nitrogen fertilizers
c. Weathering of clay minerals that release aluminum
d. All of the above - CORRECT ANSWER-d. All of the above
In order for nitrate to form from soil organic matter, Nitrosomonas must be
present in the soil but
Questions and Correct Aswers Already
Graded A+
Which cation does not promote soil flocculation?
a. Aluminum
b. Calcium
c. Potassium
d. Sodium - CORRECT ANSWER-d. Sodium
The octahedron building unit of a clay crystal contains _____ atoms.
a. 1 aluminum and 4 oxygen
b. 1 aluminum and 6 oxygen
c. 1 silicon and 4 oxygen
d. 1 silicon and 6 oxygen - CORRECT ANSWER-b. 1 aluminum and 6 oxygen
Which of the following is not a factor affecting CEC?
,a. Type of clay
b. Organic matter content
c. Soil structure
d. Soil texture - CORRECT ANSWER-d. Soil texture
Plants can only obtain nitrogen from the soil by taking up soluble anions. In
general cations cannot be absorbed by plants (TF) - CORRECT ANSWER-False
_____ is not a characteristic of soil colloids.
a. Very small size
b. High surface area
c. Ability to exchange ions with the soil solution
d. Low water holding capacity - CORRECT ANSWER-d. Low water holding
capacity
Some nitrogen-containing fertilizers are significant sources of soil acidity in
cultivated soils (TF) - CORRECT ANSWER-True
Which of the following is a micronutrient?
a. Magnesium
,b. Manganese
c. Nitrogen
d. Sulfur - CORRECT ANSWER-b. Manganese
The conversion of the nitrate nitrogen to N2 is ____.
a. denitrification
b. immobilization
c. nitrification
d. mineralization - CORRECT ANSWER-a. denitrification
Soil phosphorus is associated with eutrophication of fresh water lakes (TF) -
CORRECT ANSWER-True
Which of these ions would be held more tightly
than calcium within the cation exchange complex?
a. Aluminum
b. Magnesium
c. Potassium
d. Sodium - CORRECT ANSWER-a. Aluminum
, Micronutrient deficiencies are more likely to occur where inorganic chemical
fertilizers, rather than organic manures, have been used to stimulate vigorous
plant growth (TF). - CORRECT ANSWER-True
What property of clays does isomorphic substitution affect?
a. The ability to shrink and swell
b. Whether it's classed as 2:1 or 1:1.
c. The amount of specific surface area.
d. The cation exchange capacity - CORRECT ANSWER-d. The cation exchange
capacity
Which of the following increases soil acidity.
a. Leaching of basic cations
b. Application of ammonium sources of nitrogen fertilizers
c. Weathering of clay minerals that release aluminum
d. All of the above - CORRECT ANSWER-d. All of the above
In order for nitrate to form from soil organic matter, Nitrosomonas must be
present in the soil but
