The History of Agriculture

6. ____ replaced animals in the farm fields
8. the Hadza tribe, which is a hunting and gathering society, is located in this country
9. this Revolution allowed millions of people able to work in factories and purchase food instead of having to grow their own food.
10. hunter gatherers were _____ because they had to move often to follow their food source
11. the Fertile Crescent was the first place of settlement due to constant source of ____ and fertile land
12. this invention became widely used to grind grains into flour

1. ___ were used at this time to kill insects so more food could be produced
2. this metal was used to improve farming hand tools, the invention of the plows and the horseshoes that made horses more efficient workers
3. _____ is the process by which farmers select desirable traits and breed plants or animals to continue generations
4. ___ greatly increased crop yields and further increased food production
5. ____ is responsible for our ancestors' evolution and larger brain size
7. the first ____ powered tractor revolutionized farming.