66. What is the term for the practice of grazing livestock on natural pastures?
a) Pasture-raised
b) Grain-fed
c) Feedlot
d) None of the above
67. Which of the following is a type of farming that involves the use of artificial lighting to grow crops?
a) Hydroponics
b) Aquaponics
c) Vertical farming
d) None of the above
68. What is the term for the process by which excess nutrients from fertilizer runoff can cause algae blooms and harm aquatic ecosystems?
a) Eutrophication
b) Nitrogen fixation
c) Transpiration
d) None of the above
69. Which of the following is a type of irrigation that involves spraying water onto crops from above?
a) Flood irrigation
b) Drip irrigation
c) Sprinkler irrigation
d) None of the above
70. Which of the following is a type of farming that involves the cultivation of mushrooms?
a) Horticulture
b) Aquaponics
c) Mycology
d) None of the above