The document provides information about different farming systems: - Farming systems are classified based on their inputs, processes, and outputs. They can be intensive or extensive, arable, pastoral, or mixed, and subsistence or commercial. - Intensive farming uses high levels of input to produce high yields, while extensive farming uses low inputs and produces low yields. - A case study of an organic farm in Cornwall called South Penquite Farm is also described, which keeps sheep and cows organically and has diversified into camping and horse riding.