Agriculture: The 3 RevolutionsBy: Jenna Wilson & Kaitlyn Hager
The First Agricultural Revolution (Neolithic Revolution)
When did it occur? 11,000 years ago. What did humans do? Domestication of plants and animals. How did it change the way humans lived? So before they had to move a lot to find animals, but with domestication of animals and plants they didn't have to move as much.
The first crops grown by humans was weat.
The Second Agricultural Revolution
When did it occur? From 1700 to 1900. What changes happened in farming? The plow, Horse collar, seed drill (industrialization).
crop rotation, and the four-course system Were the biggest changes in farming.
The Third Agricultural Revolution (Green Revolution)
When did it occur? Throughout the 1970s and 1980s. What changes happened in farming? Mechanization, chemical applications, biotechnology, and gas and diesel engine tractors.
It reduced the number of laborers, Increased land, monoculture, increased yields.
What are genetically modified organisms? The result of a laboratory process where genes from the DNA of one species are extracted and artificially forced into the genes of an unrelated plant or animal. How do they change farming? They made it for crops and plants to grow faster and bigger. What are the Pros and Cons of GMOs? Pros: They increase the plant's crop yield and resistance to insects. Cons: Allergies, cancer.