Farming is an example of a primary industry. Like a factory, a farm can be seen as a system with a series of inputs, processes and outputs. Inputs can be divided into human and physical factors.
Processes are the things that go on within the farm.
This includes harvesting, ploughing, rearing animals and milking. F arming systems are determined by the type of farm. Farms can be classified as being arable, pastoral, mixed and market gardening. Arable farms grow crops. Pastoral farms specialise in rearing animals.