Agriscience {2026/2027} Exam Study Guide Questions with Complete Solutions

Agriscience {2026} Exam Study
Guide Questions with Complete
Solutions
S1. What metal revolutionized agriculture? - Answer - Iron
S1. Agriscience refers to the application of high technology to agriculture. (T/F) -
Answer - True
S1. Pesticide that was banned in 1972 because of its harmful effects on the
environment. - Answer - DDT
S1. The insecticide DDT has been used to control mosquitoes that carry which disease?
- Answer - Malaria
S1. Sulfur and arsenic were among the first elements used to control pests (T/F) -
Answer - True
S1. Who invented the iron plow? - Answer - John Deere (1837)
S1. Who was Cyrus McCormick and what did he invent? - Answer - Invented the reaper
(mechanical). Designed to cut small grains during harvest.
S1. Who invented the cotton gin & what did it do? - Answer - Eli Whitney. Removes
seeds from cotton
S1. For every dollar spent on food, what percent of that dollar is returned to the
producer? - Answer - About 12%
S1. Farming and ranching account for more than half of the jobs in agriculture. (T/F) -
Answer - False
S1. Two of the biggest markets for U.S. agriculture products? - Answer - Canada and
Mexico
S1. One out of every _______ jobs in the United States is in the field of agriscience. -
Answer - Five