16. Which of the following is a major factor in determining the nutrient content of soil?
a) pH level
b) Soil texture
c) Organic matter content
d) All of the above
17. Which of the following is a major factor in determining the success of a crop?
a) Soil fertility
b) Climate
c) Pest pressure
d) All of the above
18. Which of the following is a major environmental concern associated with agriculture?
a) Soil erosion
b) Water pollution
c) Deforestation
d) All of the above
19. What is the term for the practice of using chemicals to kill pests in agriculture?
a) Biological control
b) Pesticide use
c) Monoculture
d) None of the above
20. Which of the following is a major factor in determining the water-holding capacity of soil?
a) Soil texture
b) Soil fertility
c) Soil pH
d) None of the above
