PRACTICE QUESTIONS AND ANSWERS
Which of the following is not an essential nutrient for plants?
A. N
B. Cu
C. Na
D. H - ANS C. Na
Which of the following plant nutrients is a cation in the soils?
A. Cl
B. K
C. Mo
D. S - ANS B. Potassium
Which of the following plant nutrients is a macro?
A. Cu
B. S
C. Mn
D. B - ANS B. Sulfur
1
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, Which of the following regulates stomatal openings in plants?
A. N
B. P
C. Fe
D. K - ANS D. Potassium
Which of the following is a beneficial element that is important to animal nutrition?
A. Si
B. Na
C. Co
D. Se - ANS D. Sellenium
Which of the following plant nutrients form is the most immobile in soil?
A. Nitrate
B. Sulfate
C. Phosphate
D. Chloride - ANS C. Phosphate
Which of he following is an uptake form of nitrogen?
A. NH3
B. NO3-
C. NO2
D. N2 - ANS B. NO3-
Which of the following is an uptake form of phosphorus?
A. P2O5
2
Page
B. P+
@COPYRIGHT @THEBRIGHT 2025/2026