Green Revolution: Refers to a period of rapid advances in agricultural technology that occurred between the 1940s and 1960s resulting in increased crop yields through improved seeds, fertilizers, pesticides along with changes in farming practices.
Subsistence Agriculture: A farming system where farmers primarily grow crops and raise livestock to meet the needs of their own families or local communities rather than for commercial purposes.
Agribusiness: The business of agricultural production, including not only farming but also processing, distribution, marketing, and retailing.