B. Agricultural products move through many key steps from productions to consumption. The production to consumption system varies from society to society. Agriculture is more than farming and ranching. Food processing, distribution and marketing are key activities of any agricultural system. Advanced agricultural systems rely on the coordinated actions of many related businesses.
Agriculture is the world's leading source of employment.
In more developed countries, there are careers in food production, processing storage, marketing, transportation and research. In lesser developed countries, agriculture is conducted primarily for subsistence and involves a larger percentage of the population solely in food production efforts. Food availability varies from country to country. In more complex societies, people have wider choices of food products and are freed from much of the labor of food preparation. In simpler societies, varieties of foods may be limited and food preparation may consume more time.