This is for Lesson 6 Unit 2 in Environmental Science B. I really need the answers so I'll post the questions down here...
1. The single-most important invention to farmers is the _______
A. Automobile
B. Cotton gin
C. Teacher
D. grain Solo
2. Many modern tractors are equipped with _____ to help the tractors harvest the crops.
A. GPS devices
B. Steering wheel
C. Bigger tires
D. More seats
3. _______ farming follows the shape of the earth to prevent soil erosion.
A. Erosion
B. Contour
C. Peaks and Valleys
D. Crop Rotation