Miles Diehl 3rd Period Agriculture Agriculture 1. What is agriculture, and where did agriculture begin? Agriculture is the deliberate tending of crops and livestock to produce food, feed, fiber, and fuel. Primary economic activities: Economic activities that involve the extraction of economically valuable products from the earth, including agriculture, ranching, hunting and gathering, fishing, forestry. Secondary economic activities: Activities (ex., manufacturing) that take a primary product and change it into something else such as toys, ships, processed foods, chemicals, and buildings. Tertiary economic activities are those service industries that connect producers to consumers and facilitate commerce and trade or help people meet their needs.