The First Agricultural Revolution
Then First agricultural Revolution is also known as the Neolithic Revolution. It occured between 10,000 BC and 2,000 BC. In this revolution people went from hunting and gathering to farming. It helped them gain more food to feed everyone.
The first crops grown by humans were wheat, barley, olive, and lentil.
Second Agricultural Revolution
It occured from the 1700s to the 1900s. Farmers were using new fertilizers on crops and feeding artificial feeds to livestock.
In the second revolution they started using machines to help plant crops.
Third Agricultural Revolution
The third agricultural revolution, also known as the green revolution, started in the 1900s and is continuing today. Biotechnology and genetic engineering have occured in this revolution which makes it different from the other ones.
The third agricultural revolution has turned to genetically modified crops.
Genetically Modified Organisms
Genetically modified organisms are plants and animals changed as a result of biotechnology. These organisms are changed to make them grow faster and produce more as a benefit for human consumption. Some pros of these organisms are resistance to insects, tolerance for heat and cold, and crop yield. Some cons are allergies, antibiotic resistance, and cancer.