First Agricultural Revolution: between 10,000 BC and 2,000 BC
- Domestication of animals and plants
- Humans started to farm instead of hunting and gathering
- This lead to industrialization and fixed places of settlements
Second Agricultural Revolution: between the 1700's and the 1900's
- Western Europe
- Included the plow, horse collar and seed drill
- Also included crop rotation, the four-course system and improved efficiency
Third Agricultural Revolution: late 1900's
- gas and diesel engine tractors
- mechanization, chemical applications and biotechnology
- reduced number of laborers, increased land and monoculture
GMO- Genetically Modified Organisms
- GMO's are organisms that have had their DNA altered or modified through genetic engineering.
- Pros- It can make organisms last longer, taste better, more nutritious and resistant to diseases.
- Cons- The genetic alterations could cause harm to the organism and/or it could lead to the original organism becoming extinct.
- At least 90% of soy, cotton, canola, corn and sugar beets being sold in the US have been genetically engineered. Crops that have be altered can have the ability to grow bigger, taste better and have better defense against bugs and weather conditions.