History · Medieval Europe
Which of the following technological changes occurred in European agriculture around the 11th century? 1. Adoption of the three-field crop rotation system 2. Increased use of wind and water mills for grinding corn and pressing grapes 3. Use of iron horseshoes to prevent hoof decay 4. Introduction of chemical fertilizers
- 12, 3, and 4 only
- 21, 2, and 3 only✓
- 31, 2, and 4 only
- 41 and 2 only
Correct answer
1, 2, and 3 only
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