Across
- 4. A system where goods and services are exchanged directly without using money.
- 8. The first commercially successful what was built in 1920
- 10. What was invented in 1793?
- 12. In the early 1800s, about 90% of the population in the U.S. lived on what?
- 14. Who invented the first seed drill?
- 16. What invention combined several farming tasks—reaping, threshing, and winnowing—into a single machine?
Down
- 1. Who built and patented the first combine harvester?
- 2. business sector encompassing farming or related activities
- 3. Who invented the cotton gin?
- 5. The process by which humans selectively breed and adapt wild animals or plants for their own use
- 6. A method of farming that uses large-scale industrial operations to produce livestock, poultry, and crops.
- 7. What invention allowed farmers to plant seeds in neat rows at a consistent depth, improving seed germination rates and efficiency?
- 9. Who is generally credited with inventing the first successful tractor in 1892?
- 11. In 1940, one American farmer was able to feed approximately how many people?
- 13. John Deere invented what in 1837
- 15. The first self-propelled what was built in 1886
