The document discusses different patterns of subsistence across human societies. It describes subsistence as how societies transform the environment into food, clothing and shelter. The main subsistence patterns discussed are foraging, pastoralism, horticulture, agriculture, and industrialization. Foraging societies rely on hunting and gathering while agricultural societies cultivate crops. As agriculture intensified, some societies urbanized and developed more complex social hierarchies, while others remained in rural areas as peasants providing food. Finally, the industrial revolution transformed subsistence in many regions through new technologies and global exchange.