81. What is the term for the practice of using animal manure and other organic matter to improve soil fertility?
a) Composting
b) Fertilization
c) Mulching
d) None of the above
82. Which of the following is a type of crop that is commonly used for biofuel production?
a) Corn
b) Wheat
c) Rice
d) None of the above
83. What is the term for the practice of growing crops in a controlled environment, such as a greenhouse?
a) Controlled environment agriculture
b) Precision agriculture
c) Organic agriculture
d) None of the above
84. Which of the following is a type of livestock that is commonly used for wool production?
a) Cows
b) Pigs
c) Sheep
d) None of the above
85. What is the term for the practice of rotating crops to improve soil health and reduce pest infestations?
a) Crop rotation
b) Monoculture
c) Polyculture
d) None of the above
